Can EMDR Cause Nausea?

Short Answer: Some people notice mild nausea during or after EMDR, but it is not a typical reaction for most people. When it happens, it is often brief and can be connected to ordinary factors such as eye movements, screen use, motion sensitivity, stress, fatigue, or starting a session without feeling physically comfortable. If nausea begins during a session, you can pause, let the feeling settle, and adjust the way you continue.

Key Takeaways

• Most people do not feel nauseated during EMDR.
• When nausea does happen, it is often mild and temporary.
• Eye movements, screen use, motion sensitivity, fatigue, stress, or how you were feeling physically before the session can sometimes contribute to the feeling.
• You can pause the session and let the sensation settle before deciding whether to continue.

Is Nausea a Common EMDR Reaction?

Nausea can happen during or after an EMDR session, but it is not something most people experience. For many people, a session ends without any stomach discomfort at all.

When someone does feel slightly nauseated, the sensation is often short-lived. It may show up while following side-to-side visual movement, after spending time looking at a screen, or when the person is already tired, hungry, tense, or sensitive to motion.

That is why it is useful to keep the reaction in proportion. Noticing a little stomach discomfort during one session does not mean that nausea is a normal part of every EMDR session, and it does not mean future sessions will feel the same way.

Why Might Nausea Happen During EMDR?

There is not one single reason that explains every case of nausea during EMDR. The sensation can come from several ordinary factors that happen to overlap with the way a session is done.

People can respond differently to the same type of EMDR stimulation. One person may notice mild nausea or motion sensitivity, while another person using the same eye movements or visual stimulus may feel completely comfortable. Many people do not experience nausea during EMDR at all.

Visual bilateral stimulation is one example. Watching an object or light move from side to side requires repeated eye movement. A person who is sensitive to visual motion can sometimes notice a mild unsettled feeling from that kind of tracking, much like some people feel uncomfortable reading in a moving car or watching fast movement on a screen.

Screen use can also matter when EMDR is done online. Brightness, contrast, the size or speed of the moving stimulus, and how close you are sitting to the screen can all affect comfort. None of these things automatically causes nausea, but adjusting them can make a session easier for someone who is sensitive to visual movement.

The way you feel before the session can matter too. If you are already tired, tense, overheated, or feeling a little unsettled physically, stomach discomfort during the session may not necessarily be caused by EMDR.

Can Eye Movements Contribute to Nausea?

For some people, yes. Repeated side-to-side eye movements can create a mild motion-like sensation, especially when the eyes are moving farther or faster than feels comfortable.

If that happens, you do not need to push through it. You can stop the visual movement for a moment, look at a still point, and let your eyes rest. If you want to continue, you can try a smaller movement, a slower pace, or another form of bilateral stimulation.

EMDR does not depend on one exact visual pattern for every person. Depending on the format you are using, alternating sounds or tapping can provide a left-right rhythm without requiring continuous visual tracking.

Can Nausea Change During an EMDR Session?

If nausea appears during EMDR, it does not necessarily stay at the same level for the rest of the session. A mild unsettled feeling may fade after you stop the visual movement for a moment, change your position, or simply take a short break.

It may also help to notice whether the feeling changes when the bilateral stimulation changes. For example, someone who feels uncomfortable while following a moving visual may feel fine using alternating sounds or tapping instead.

You do not need to keep testing the sensation or repeatedly restart something that feels uncomfortable. The point is simply that nausea during one part of a session does not mean the rest of the session will necessarily feel the same way.

If the feeling settles and you want to continue, you can. If it does not, you can end the session and return another time.

What Does Mild Nausea During EMDR Feel Like?

The feeling can vary. Some people describe a slightly unsettled feeling, mild motion sensitivity, or the sense that they would rather stop looking at the moving stimulus for a moment.

Most people do not experience nausea at all, and a mild sensation does not have to become stronger simply because it appeared during a session.

If you notice it, the useful question is not whether something has gone wrong. The more practical question is what was happening when the feeling began and whether a small adjustment makes you more comfortable.

Pay Attention to When the Nausea Starts

Timing can give you useful clues. If the sensation begins only while following the visual stimulus and settles when you stop looking at it, visual motion may be part of the explanation.

If it appears after you have been on a screen for a while, screen fatigue may be contributing. If you already felt tired, tense, or slightly unsettled before the session, the timing may point to factors that were present before EMDR began.

You do not need to analyze every sensation in detail. Simply noticing the pattern can help you make an easy adjustment next time rather than assuming that nausea is an unavoidable part of EMDR.

What Should You Do If You Feel Nauseated During a Session?

The simplest response is usually to pause. Stop the eye movement or other stimulation and give yourself a moment to see whether the sensation settles.

If you were using visual stimulation, you can rest your eyes on a still point. You can also sit back, loosen any tense posture, and wait until you feel comfortable deciding what to do next.

If the feeling passes and you want to continue, you can return at a slower pace or use a smaller visual range. If you are working with a therapist, let them know that you feel nauseated so you can slow down, pause, or adjust the type of stimulation together. If you are using online or self-guided EMDR such as Virtual EMDR, you can pause the bilateral stimulation, take a break, or end the session and return another time.

There is no benefit in forcing yourself through an uncomfortable sensation just to finish a session. Pausing is simply one way of adjusting the session to what feels manageable in that moment.

Can You Prevent Nausea During EMDR?

There is no need to take special precautions if nausea has never been a problem for you. Most people can simply use EMDR normally.

If you know that you are sensitive to screens or visual motion, a few practical adjustments can help. You can sit at a comfortable distance from the screen, reduce the speed or size of the visual movement, lower screen brightness if it feels harsh, or choose a nonvisual form of bilateral stimulation when that option is available.

It can also help to begin a session when you feel reasonably comfortable physically rather than when you are overtired, overheated, or already slightly nauseated for another reason.

The goal is not to create a complicated routine. It is simply to remove obvious sources of discomfort so you can focus on the EMDR process itself.

Does Nausea Mean the Session Is Working?

Feeling nauseated is not a sign that EMDR is working better, and not feeling nauseated does not mean the session was less useful.

People sometimes look for physical reactions as proof that something important is happening. EMDR does not require a particular body sensation to be useful. A session can feel calm, neutral, emotional, tiring, or physically uneventful.

If nausea happens, it is better to treat it as information about your comfort during the session rather than as a measure of progress.

What If Nausea Continues After the Session?

If mild nausea seems connected to visual motion or screen use, it may settle once the movement stops and you take a short break from the screen.

If nausea started before the session, keeps returning in situations unrelated to EMDR, or does not seem connected to the way the session was done, it may have another explanation. EMDR does not need to be treated as the automatic cause of every physical sensation that happens around the same time.

The useful approach is to notice the pattern over time. If the sensation appears only with one type of stimulation, changing that part of the session may be enough.

If you are doing EMDR with a therapist, you can let them know what you noticed so you can adjust the stimulation or pace together in a future session. If you are using online or self-guided EMDR, such as Virtual EMDR, you can make similar adjustments yourself by slowing the stimulation, changing the visual range, or using another available form of bilateral stimulation.

Conclusion

Many people do not experience nausea during EMDR at all. Some people may notice mild nausea during or after a session, but it is not a typical reaction for most people. When it does occur, it is often brief and may be related to visual tracking, screen use, motion sensitivity, fatigue, tension, or another ordinary factor that happens to be present during the session.

If you notice mild nausea, you can pause and let the sensation settle. If visual movement seems to be the trigger, you can slow it down, reduce the range, or use another form of bilateral stimulation when that option is available.