Why You Feel Worse After Reiki: The Healing Crisis Without the Mysticism

You went for a Reiki session. It was calm, it was pleasant, you may even have drifted off. And now, some hours later, you feel worse. Flattened. Tearful for no reason you can name. Headachy. Cold. Faintly sick. Angry in a way that has no object.

And somewhere underneath all of it, a small anxious question: was that supposed to happen?

I want to answer that carefully, because you deserve better than the two answers usually on offer. One tells you it is toxins leaving your body and hands you a glass of water. The other tells you it was never going to do anything anyway. Neither is true, and neither helps you at eleven o'clock at night.

So here is what I can tell you honestly: what people commonly experience, what is most likely happening, what the phrase "healing crisis" is really worth — and, first, the small number of symptoms that are not a healing anything and need a doctor now.

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Before anything else: when this is not a healing response

Most post-session discomfort is mild and passes. But some symptoms need medical attention regardless of what you did that afternoon, and no energy practice — mine, your practitioner's, anyone's — should ever be used to explain them away.

Seek emergency care immediately if you have:

• Sudden, severe headache — especially the worst you have ever had, or one with a seizure, drowsiness, confusion, vision loss, difficulty speaking, or a rash that does not fade under pressure (NHS)
• Any sign of stroke — face drooping, arm weakness, speech difficulty. One sign is enough. Call emergency services (Stroke Association FAST)
• Chest pain, pressure or tightness, pain spreading to arm, jaw, back or shoulder, breathlessness, cold sweats (Mayo Clinic)
• Fainting that came with chest pain or palpitations, happened while lying down or exercising, or from which you did not fully recover (NHS)
• Fever with a stiff neck and sensitivity to light
• Vomiting with severe abdominal pain, confusion, or blood (Mayo Clinic)
• Thoughts of harming yourself. Please reach out now — in the UK, Samaritans on 116 123, free, any hour; in the US, the 988 Suicide & Crisis Lifeline (NHS guidance)

And see your doctor if: anything is getting worse rather than better, a known condition has flared, or you still feel unwell after about three days.

The timing of a symptom does not tell you its cause. Something that begins after a Reiki session may have nothing to do with the session at all — bodies have their own schedule, and a quiet hour on a treatment table is exactly when you finally notice what has been building for a week. Getting that checked is not a failure of faith. It is basic care of the vessel.

With that established, let us talk about everything else — which is most of it.

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What people actually report

If you search for what you are feeling right now, you will find you have a great deal of company. Search engines complete the question "why do I feel ___ after Reiki" with: worse, tired, sleepy, sick, sad, weird, cold, angry. Eight of the ten most common completions describe something unwanted.

That is worth sitting with for a moment. This is not rare. It is not a sign that something went wrong, that you are unusually damaged, or that your practitioner did something incorrectly. It is one of the most commonly reported experiences in this entire practice — and one of the least honestly discussed.

The most frequently described reactions are:

• Deep fatigue, sometimes for a day or more
• Tearfulness arriving without a story attached
• Headache
• Feeling cold, or shivery
• Mild nausea
• Emotional turbulence — irritability, sadness, unexpected anger
• Vivid dreams, or a night of broken sleep
• A day or two of feeling generally "off"

Now — why?

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About that phrase, "healing crisis"

You will meet this phrase constantly, so let me be straight with you about where it comes from and what it is worth.

It did not originate in Reiki. It comes from nineteenth-century naturopathy and homeopathy, where a temporary worsening of symptoms was understood as a sign that a cure had begun. It is closely tied to what became known as Hering's law of cure, attributed to the homeopath Constantine Hering — though notably Hering never published such a law himself; the principles were compiled from his case records after his death.

In homeopathy the same idea is called an aggravation. And the US National Center for Complementary and Integrative Health notes plainly that although practitioners expect this reaction, researchers have not found much evidence of it in clinical studies.

There is a sharper criticism, and I think it deserves a hearing rather than a dismissal. Professor Edzard Ernst has argued in a peer-reviewed paper that "healing crisis" functions as an unfalsifiable, post-hoc explanation: if the patient improves, the treatment worked; if the patient worsens, that is the healing crisis, so the treatment also worked. A claim that cannot fail is a claim that cannot teach you anything.

He is right that this is how the phrase is often used. I have seen it used exactly that way, and it makes me uncomfortable every time.

So I will use the phrase in this article, because you will encounter it everywhere and you need to know what people mean by it. But I am not going to treat it as a diagnosis, and I would gently suggest you do not either. What you are feeling is real. The label is doing much less work than it appears to.

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The Herxheimer borrowing — and why it does not apply

You will often see a more scientific-sounding version: that you are experiencing a Herxheimer reaction.

The Jarisch-Herxheimer reaction is entirely real, and precisely defined. It is an acute, self-limiting inflammatory response that occurs within about 24 hours of starting antibiotic treatment for spirochete infections — syphilis, Lyme disease, leptospirosis, relapsing fever. The mechanism is specific: antibiotics rapidly kill large numbers of bacteria, the dying organisms release lipoproteins, endotoxin-like substances and inflammatory cytokines — IL-6, IL-8, TNF-alpha — and those drive fever, chills, headache and muscle pain. Onset is one to three hours after the first dose, and it typically resolves within 24 hours.

Look at what that requires: an active bacterial infection, an antimicrobial actively killing it, and pathogen die-off releasing cytokines.

A Reiki session has none of these. There is no infection under treatment, no antimicrobial, and nothing dying. The name has been borrowed because it sounds authoritative, not because the mechanism transfers. Even within naturopathic writing, the "healing crisis" and the Herxheimer effect are treated as distinct things.

I would rather tell you I do not fully know what is happening in your body tonight than hand you a borrowed word that sounds like knowledge.

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And the toxins?

This one is nearly universal, and it does not hold up either.

There is no good evidence that bodywork releases stored toxins requiring flushing. As one closely-referenced review of the massage literature puts it, the flushing model is not supported — massage is not liberating toxins that were sitting there when you walked in. Mayo Clinic's position on detoxification generally is that the "toxins" in question are typically never specified, and there is little to no evidence of toxic accumulation in the first place. Your liver and kidneys are doing this work continuously, and they were doing it before your session.

There is something adjacent that is documented. Post-massage soreness and malaise is a recognised phenomenon; one survey found around 10% of 100 massage patients reported some minor discomfort in the day afterwards. The proposed mechanism is not detoxification but mild, exercise-like muscle irritation from pressure. That is less mystical and considerably more useful, because it tells you what to expect and when to stop worrying.

Should you drink water afterwards? Yes — but for the ordinary reason that you have been lying still, warm, breathing slowly for an hour, and most people are mildly under-hydrated most of the time. Not because you are flushing anything.

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What is likely happening in your body

Several ordinary, well-understood things could be producing exactly what you are feeling. This is one order of explanation, and it is the one most often left out of writing on this subject. There is a second order, which concerns the process rather than the tissue, and it follows immediately after.

1. You are coming down, and coming down has a cost

For an hour you were still, warm, safe and touched with attention. That is a strong signal to the nervous system to leave a state of vigilance. A small pilot study measuring Reiki against sham and no treatment found reductions in heart rate and diastolic blood pressure in the Reiki group — though the authors themselves cautioned that it was small and needed replication, and I pass that caution on rather than hiding it.

If your body has been running on alertness for weeks, the first hour of genuine parasympathetic shift is not experienced as bliss. It is often experienced as exhaustion — the exhaustion that was already there, finally allowed to be felt. Anyone who has slept for eleven hours on the first day of a holiday and woken up feeling worse knows this pattern intimately.

2. Deep relaxation can itself provoke anxiety

This is well documented and almost never mentioned. In a classic clinical study, four of fourteen tense adults showed clear anxiety reactions during relaxation training — roughly one in four.

For a person whose vigilance has been protective, letting it go does not feel like relief. It feels like exposure. If you found yourself unaccountably frightened or agitated on the table or afterwards, you are not doing it wrong. You are meeting the reason the vigilance was there.

3. You are noticing what was already true

An hour of stillness with attention turned inward is an hour of unusually high interoception — awareness of internal bodily sensation. The tight shoulder, the shallow breath, the grief you have been outrunning: none of these arrived during the session. They stopped being drowned out.

This is one of the most common experiences people describe as "Reiki made me feel worse", and it is closer to the opposite. Something that was already present became audible.

4. Emotional release

Crying during or after bodywork is common enough that professional massage bodies address it directly. The traditional explanation is that unexpressed emotion is held as tissue tension and released by touch — I would flag that as a theoretical framework rather than a demonstrated mechanism. What is not in question is that it happens, and that the professional guidance is sound: the practitioner's role is to hold steady space, not to interpret.

If your session brought up something large — particularly if you carry trauma — trauma-informed practice suggests grounding in the present rather than pushing deeper: attention to the details of the room, slow breathing, feeling your own edges. And if what surfaced is bigger than a Reiki session can hold, that is information worth acting on, with a therapist rather than a practitioner.

5. You were told to expect it

This one asks for humility from those of us who teach.

The nocebo effect is well established: expectation of side effects is consistently linked to those symptoms actually being experienced, and people readily misattribute unrelated symptoms to a recent treatment.

If your practitioner said "you may feel a detox over the next few days", they planted both a prediction and a frame. Some of what you feel may be the prediction doing its work. That does not make you suggestible or foolish — it makes you a human being with a working brain. And it is one of several reasons I try to describe what people report rather than tell anyone what they are going to feel.

6. The unglamorous physical explanations

You lay still for an hour. You may have skipped lunch. You may have been warm and slightly dehydrated. You stood up quickly afterwards and drove home. Mild dehydration alone produces tiredness, dizziness and confusion.

Before reaching for anything subtle, rule out the obvious. A sandwich and a glass of water resolve a surprising proportion of post-session mystery.

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What may be happening in the process

Everything above concerns the body, and it is accurate as far as it goes. But if I stopped there I would be doing the thing I objected to at the start — handing you a tidy account that quietly leaves out what practitioners actually see.

So here is the other order of explanation.

Think of what you carry as a stack of plates. The one on top is the only one you can reach. When a session helps you set it down, you do not arrive at empty space. You arrive at the next plate — which was underneath the whole time, unreachable precisely because something was resting on it.

This is why the day after a good session can feel heavier than the day before it. Not because something went wrong. Because something moved, and what lay beneath it became available to you, possibly for the first time in years.

And the deeper the plate, the older it usually is. What surfaces first tends to be recent — this month's tiredness, this year's strain. What waits underneath has more history in it, and it does not announce itself politely. It arrives as a mood with no cause, a grief with no occasion, an irritability that seems to belong to nobody.

Why almost nobody goes looking

Because they are certain that nothing good is down there.

That conviction is not incidental. It is part of what holds the plate in place. The whole architecture of avoidance — the busyness, the noise, the reluctance to sit still for an hour — is built to keep the lower plates unreachable, and it works. It costs a great deal to maintain, but it works.

And here is what I would want you to hear tonight, if you are sitting with something that surfaced and feeling afraid of it: the thing down there is almost never as large as the effort of not looking at it. What waits underneath is rarely a monster. Far more often it is something young and unheld that has been waiting a very long time for someone to stay in the room with it.

There is no other route. You cannot release what you cannot reach, and you cannot reach what is buried under something else. Every approach that avoids this manages the surface and calls it healing. The uncomfortable day after a session is not a detour from the work. On the days it goes deep, it is the work.

Two limits I want to put on this

A few paragraphs ago I criticised explanations that cannot fail. "You have reached a deeper layer" could very easily become one of those, so let me fence it properly.

It never overrides the list at the top of this page. A layered process does not cause chest pain. It does not cause a stroke. It does not cause the worst headache of your life. If something on that list is happening, it is not a plate — it is a medical matter, and it needs a doctor tonight.

And a practitioner must never reach for it to cover what they cannot assess. "You've moved into a deeper layer" is the same sentence as "it's just the detox" in better clothes, if it is said to avoid saying I don't know, please get that checked.

Held inside those two limits, this is not mysticism. It is the working knowledge of the practice, described consistently enough, by enough people, across enough traditions, that leaving it out would make this article less true rather than more.

What a well-conducted session does about this

A practitioner who understands the layered nature of release does not presume it. This matters more than it might sound. Deciding in advance what someone is about to release — or that they are about to release anything at all — is its own quiet form of interference, and it puts the practitioner's expectation into a space that belongs to the client. Every person is different. Every session is different. The same person is different in June and in November.

What changes is not the assumption. What changes is the ending.

A session that opens something and then simply stops leaves you carrying it out of the door. A session closed properly finishes with integration — time given deliberately to settling what moved, gathering the field, bringing the person fully back before they stand up. Not a formality at the end of the hour. A distinct part of the work, and often the part that determines whether the following day feels like movement or like being dropped.

If your sessions tend to end the moment the hands lift, that is worth a conversation with your practitioner. Ask how they close. It is a fair question and a good one.

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How long does it last?

You will see three answers repeated with great confidence: 24 to 48 hours, 24 to 72 hours, and 21 days.

I have looked for the evidence behind these numbers. There is none. No clinical measurement, no study, no data — only practitioner writing, and it contradicts itself. One widely-read Reiki site states that detox symptoms last no longer than 21 days, and its own comment section contains readers reporting symptoms lasting considerably longer. The 21-day figure also seems to belong specifically to the period after an attunement, and gets conflated with post-session effects in a way that helps nobody.

So here is what I will say instead, plainly labelled as judgement rather than fact:

• Most reported effects settle within a day or two. That matches the overall pattern and the ordinary mechanisms above.
• Three days is a reasonable personal checkpoint. Still feeling unwell after that? See a doctor. Not because Reiki has hurt you — there are no documented harmful effects of Reiki itself — but because three days of feeling unwell deserves an explanation better than any of us can give you from a distance.
• Anything in the red-flag list at the top overrides this entirely, at any hour, on any day.

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What actually helps in the next twenty-four hours

If something did move, then the day that follows is not an inconvenience to be managed. It is part of the session — the part where what was lifted has to settle somewhere.

So the instruction underneath all of the following is simply this: treat yourself with the same care you would offer someone you loved who had just done something difficult and brave. Nothing here is complicated, and none of it requires believing anything in particular.

• Get warm. Feeling cold after a session is common; a blanket, a bath, a hot drink.
• Eat something. Genuinely. This is more often the answer than anyone expects.
• Drink water — for ordinary reasons.
• Sleep if you can. If your body is asking for it, the request is not a symptom to be managed.
• Postpone the big conversation. A day when your emotional surface is thin is not a day for a difficult decision or a confrontation you have been avoiding.
• Write down what came up — even three lines. Emotional material that surfaces after a session often has something specific to say, and it fades quickly.
• Be gentle with your own practice. If you are attuned, a short session of hands on your own heart or belly is usually enough. This is not the evening to attempt anything ambitious.
• Tell your practitioner. A good one wants to know. It shapes how they work with you next time, and it teaches them something. If they wave it away as "just detox", consider that information about them.

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Is it different after an attunement?

Often, yes — and it is worth naming separately.

Initiation is more concentrated than a treatment, and reported reactions after Level I or II tend to be stronger and to last longer. Around this sits the well-known 21-day cleansing period, which deserves its own honest examination — how much of it is traditional and how much accumulated later is a real question, and I will take it up properly in a separate article.

Two things I would add here, because they matter.

First: feeling nothing after an attunement is also normal. Many people feel very little, and it says nothing at all about whether the initiation took. I would rather tell you that now than have you spend a month quietly assuming yours failed.

Second, a genuine caution. There exists a published case report of a woman who developed an acute psychotic episode roughly two weeks after attending Reiki training. The authors attribute it to several converging factors — family psychiatric history, an underlying vulnerability, physical exhaustion, insomnia and concurrent stimulant use — rather than to Reiki as such, and she recovered fully within a week with treatment.

I include it not to frighten anyone, but because a single case in the literature is worth an honest sentence, and because the practical lesson is genuinely useful: intensive spiritual practice undertaken while exhausted and sleep-deprived is not a neutral act. Sleep. Eat. Do not stack an initiation on top of a crisis. If you have a personal or family history of psychosis or serious mental illness, talk to your doctor before intensive energy work, exactly as you would before a silent retreat.

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If you are the practitioner

One paragraph for colleagues, and it is the most important one I will write here.

The phrase "that's just the detox" is the single most dangerous sentence in our field. Not because it is always wrong, but because it is available every time and it costs nothing to say. It sends people home with chest pain. It reassures somebody whose headache is the worst of their life. And it teaches clients that whatever happens next, it was supposed to happen.

We do not have the training to distinguish an emotional release from a neurological event, and we are not required to. What we are required to do is notice when something is outside our scope and say so clearly. "That doesn't sound like a typical response — please get it checked" costs you nothing and protects everyone, including you.

The largest documented harm associated with complementary practice has never been the practice itself. It is delay — people postponing or declining conventional care. That harm is real and measurable: in one major study, patients with curable cancers who chose alternative medicine alone had substantially worse survival than those receiving conventional treatment. Nothing we offer is a reason for anyone to walk past a doctor.

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The honest close

What you are feeling tonight is real, and it is common, and it is almost certainly temporary.

It may be your nervous system finally standing down after a long tour of duty. It may be grief that has been waiting for a quiet room. It may be that a plate has been lifted and you are meeting, at last, what was underneath it. It may be that you skipped lunch. Most likely it is some combination, and precision is beyond what anyone can honestly offer you at this distance.

What I will not do is dress that uncertainty in borrowed medical vocabulary and hand it back to you as an explanation. You came here uneasy. You deserve accuracy more than you deserve reassurance — and the accurate thing is that this pattern is well known, that Reiki itself has no documented harmful effects, and that a small number of symptoms need a doctor tonight regardless of what any of us believe.

Be warm. Eat something. Sleep.

And if it is still with you in three days, go and get it looked at. That is not a lack of trust in the practice. It is what taking care of yourself has always looked like.

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Frequently asked questions

Is it normal to feel worse after Reiki? Feeling tired, tearful, headachy or emotionally unsettled for a day or two afterwards is commonly reported and is one of the most frequently searched questions about Reiki. It is not a sign that anything went wrong. Severe or alarming symptoms — sudden severe headache, chest pain, stroke signs, fainting, high fever with a stiff neck — are not a healing response and need urgent medical attention.

How long does a Reiki healing crisis last? There is no clinical data on this. Practitioners commonly say 24 to 48 hours, 24 to 72 hours, or 21 days after an attunement, and these figures contradict each other and are not measured. Most reported effects settle within a day or two; if you still feel unwell after about three days, see a doctor.

Does Reiki release toxins? There is no good evidence for this. The claim that bodywork releases stored toxins requiring flushing is not supported by the physiology literature. Your liver and kidneys handle this continuously. Drinking water afterwards is sensible for ordinary reasons, not because you are detoxifying.

Why do I feel tired after Reiki? The most likely explanation is a shift out of a sustained stress state. When the nervous system finally stands down, accumulated fatigue that was masked by alertness becomes noticeable. Lying still for an hour, mild dehydration and not having eaten all contribute.

Why do I cry after a Reiki session? Emotional release during or after touch-based work is common and is addressed directly in professional bodywork guidance. An hour of stillness and attention often makes feelings audible that were being drowned out. If what surfaces is larger than a session can hold, that is worth taking to a therapist.

Why does Reiki bring up old feelings I thought I had dealt with? Because release tends to work in layers. What sits on the surface has to be set down before what lies underneath becomes reachable at all — so the feelings that surface after a session are often older than the session, and older than the thing you went in for. This is uncomfortable, and it is also the only route to lasting release rather than surface management. A well-conducted session closes with time given to integration for exactly this reason.

Can Reiki make you feel sick? Mild nausea is occasionally reported and usually passes quickly. Persistent vomiting, or vomiting with severe abdominal pain, confusion or blood, is a medical matter and needs assessment rather than an energetic explanation.

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This article is educational and is not medical advice. Reiki is a complementary practice and is never a substitute for conventional medical care. If you are unwell, please speak to a doctor.

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