Nausea from Stress or Anxiety: Causes, Symptoms, and Treatment

October 17, 2025

Authored by: Veronica Silver, MA

Edited by: Jemma Strain, B.S. Psychology

When we’re feeling extremely anxious or are in stressful situations, it’s normal to feel sick to our stomachs. This reaction isn’t in our heads; it’s actually a symptom of uncomfortable emotions. This is because, for many of us, anxiety not only affects our mood or sleep, but it can also cause physical sensations, like nausea or stomach pain.

Researchers have proven the connection between mental health and digestive symptoms – called the “gut-brain connection.”¹This connection happens because the body’s stress response doesn’t stop at the brain; it can create an uncomfortable loop between worry and physical distress.

Fortunately, physical symptoms of stress and anxiety are very manageable, especially with professional guidance. This article can also help you understand anxiety-related nausea by exploring:

The physical symptoms of stress and anxiety, such as nausea
The connection between mental health and gut health
Symptoms of stress and anxiety-related nausea
Causes of nausea from stress or anxiety
Mental health support for stress, anxiety, and nausea
Answers to commonly asked questions about adult anxiety symptoms

What Is Stress-Induced Nausea?

Stress-induced nausea is a physical reaction to situations that are stressful or cause anxiety. This reaction starts in the brain and then manifests in the body. This is because, when we experience stress or anxiety, our nervous system believes we’re in some sort of danger. As a result, to protect us, our body releases hormones like cortisol and adrenaline to prepare to either flee or fight.

While this “fight-or-flight” response helps keep us safe during emergencies, it can also temporarily disrupt our digestion. Blood flow moves away from the stomach toward larger muscle groups, and the gut’s natural rhythm changes. Therefore, we might experience physical symptoms of stress, such as queasiness, stomach tightening, or even an urge to vomit.²

Yet, unlike nausea caused by illness, anxiety-induced nausea often goes away once your body calms down. For instance, you might notice it fading after you’ve stepped away from a stressful conversation, practiced deep breathing, or distracted yourself with a calming activity. Still, the experience is very real – your body is responding to psychological stress in the same way it would to a physical threat.

The Connection Between Mental Health and Digestive Health

The gut–brain axis is a complex communication network linking our digestive system with our central nervous system through nerves, hormones, and neurotransmitters like serotonin. For this reason, experts have long claimed that the gut is the “second brain,” and research increasingly supports this idea.³

When we are stressed and anxious, the connection between our brain and gut becomes more active. Our brains send distress signals to the gut, and the gut, in turn, sends messages back. This back-and-forth communication can intensify emotional and physical discomfort.

Additionally, during times of stress, the hormones that our bodies release focus on the critical systems for our survival, like increasing blood flow to our muscles. Plus, as mentioned, at the same time, it suppresses the systems that are not necessary during fight or flight, like digestion. This means that our brain signals our bodies to slow the breakdown of food, increase stomach acid, and heighten gut sensitivity. Therefore, normal sensations, like fullness, mild bloating, or movement in the stomach, can feel intensified and uncomfortable.

Symptoms of Anxiety-Related Nausea

Symptoms of anxiety-related nausea can be different from person to person. For you, it might appear as mild pain or stomach discomfort. But for other people, it may be more intense, resulting in nausea or even vomiting, and could interfere with eating, sleeping, or concentration.

Because the gut and nervous system are so closely connected, stress-related nausea often appears alongside other physical and emotional symptoms. For instance, if you have nausea from stress or anxiety, some common symptoms you might experience are:

Stomach discomfort or queasiness that arises before or during stressful situations
A fluttering or “butterflies in the stomach” feeling before anxiety-inducing events
Loss of appetite or feeling full quickly after eating
Tightness or pressure in the chest or throat that accompanies worry or panic
Dizziness or lightheadedness when anxious thoughts increase
Cramping, bloating, or indigestion with no clear medical cause

These sensations can make daily tasks, like attending a meeting, socializing, or even eating, feel overwhelming. Plus, often, the more we worry about the nausea itself, the worse it becomes.

Common Triggers and Causes of Nausea in Adults

Stress- and anxiety-related nausea is usually the body’s way of signaling overload. Over time, this constant activation can make your stomach more reactive and sensitive to even minor triggers.

Some of the most common causes and triggers of this form of nausea include:

Acute stress, such as sudden events like job interviews, presentations, or arguments
Chronic anxiety, ongoing worry, or hypervigilance that keeps the body in a constant “fight-or-flight” state
Lifestyle habits that increase physical stress and heightened sensitivity to nausea, such as drinking lots of caffeine, skipping meals, not drinking enough water, and lack of sleep
Underlying or unprocessed emotional experiences or trauma, which can make the nervous system hypersensitive, leading to stronger gut reactions during stress
Hormonal shifts or changes, like those during menstruation, pregnancy, or menopause, can make both mood and digestion more sensitive to stress.

This give-and-take between anxiety and the digestive system may explain why stress-related nausea is so common. In fact, what starts as a simple physical symptom can quickly become tied to worry, avoidance, and self-consciousness.

How Stress and Anxiety Cause Nausea

When we feel anxious or stressed, the body doesn’t always distinguish between emotional danger and physical threat. The amygdala, a part of the brain responsible for detecting fear, activates the hypothalamus, which sets off a cascade of hormonal changes – most notably, the release of cortisol and adrenaline.⁴

The vagus nerve, a critical part of the gut-brain axis, plays a central role in this process. It carries messages from the brain to the digestive system and back again.⁵ When stress signals travel along this nerve, these messages can trigger nausea, changes in appetite, or even vomiting. Over time, if anxiety remains high, the vagus nerve becomes overly sensitive, and even small stressors may elicit a physical response.

In fact, research has shown that people with anxiety disorders often have more reactive digestive systems.⁶ For instance, conditions like irritable bowel syndrome (IBS) or functional dyspepsia are commonly linked with stress-related nausea. This connection reinforces the idea that mental and physical wellness are deeply intertwined. Thus, the more effectively we manage stress, the calmer our digestive system can become.

Therapy and Coping Strategies For Nausea and Anxiety

Managing nausea that stems from stress or anxiety means addressing both the physical sensations and the emotional roots behind them. The goal isn’t to simply mask the symptoms – it’s to help the body and mind find equilibrium again.

Through therapy for nausea and anxiety, lifestyle adjustments, and self-regulation tools, you can begin overcoming stress-related nausea and rebuild confidence in your body’s ability to stay calm under pressure.

Below are several evidence-based treatments and stress management techniques that can help regulate both the nervous system and the digestive tract.

Cognitive Behavioral Therapy (CBT) for Anxiety-Related Nausea

CBT is one of the most effective forms of behavioral therapy for nausea and anxiety.⁷ It focuses on the connection between thoughts, feelings, and bodily responses. When we think something like, I’m going to get sick during this meeting, our body may respond as though this fear is a real threat – triggering nausea. CBT helps us challenge such thoughts and retrain our brains to respond more calmly.

Mindfulness and Relaxation Practices

Mindfulness invites us to shift attention away from catastrophic thinking and into the present moment. Breathing techniques, meditation, or guided imagery can reduce stress hormones and calm the gut-brain connection.⁸ These practices teach your body that it’s safe to relax – lowering cortisol levels and easing digestive tension.

Simple relaxation methods such as progressive muscle relaxation, gentle stretching, or grounding exercises are practical stress management techniques that can prevent stress from building to the point of physical distress.

Lifestyle Changes and Self-Regulation Tools

Making small, intentional lifestyle choices can make a difference in how we process stress. Here are some tools you can try to reduce stress and anxiety, and hopefully decrease nausea:

Regularly eat small, balanced meals to maintain stable blood sugar
Stay hydrated. Dehydration can worsen nausea and fatigue
Reduce substances that can cause anxiety or jitteriness, like caffeine and alcohol, to help regulate anxiety and digestion
Get out and move daily. Light exercise supports circulation and digestion
Get enough sleep. Good sleep helps restore the nervous system
When nausea starts, slow your breathing, focus on your senses, or gently stretch

These daily strategies support overcoming stress-related nausea and build a foundation for emotional and physical resilience.

Mission Connection: Professional Support for Stress-Related Nausea

Living with stress or anxiety-related nausea can feel like a cycle that’s hard to escape. You may try to control it through willpower, diet changes, or over-the-counter remedies – only to find that the nausea returns whenever stress does. At Mission Connection, we recognize that this pattern isn’t about weakness or lack of discipline. It’s a natural response of a body that’s been on high alert for too long.

Whether your symptoms stem from chronic stress, panic attacks and nausea, or unprocessed trauma, Mission Connection offers the tools and support you need to move forward. Using approaches like CBT, mindfulness, and somatic therapy, we’ll help you address your stress and anxiety and reduce nausea.

If you’re ready to overcome stress-related nausea and rebuild a stronger connection between your mind and body, you don’t have to do it alone. Contact Mission Connection today to schedule an appointment and begin your path toward lasting relief and inner stability.

FAQs About Nausea From Stress or Anxiety

1. Can Stress Really Make Me Feel Sick Even if Nothing Is Physically Wrong?

Absolutely. Emotional distress can directly affect our physical systems through the gut–brain axis. The same nerves and neurotransmitters that regulate mood also influence digestion, which is why strong emotions often cause stomach upset. Feeling sick during stress isn’t imagined – it’s our body’s way of responding to internal tension.

2. How Can I Tell if My Nausea Is From Anxiety or a Medical Condition?

Your nausea might be linked to anxiety if you’ve ruled out infection, food sensitivity, or other medical issues. You might also notice that your nausea worsens during stressful times or when you’re experiencing anxiety. Keeping a journal of your symptoms and emotional triggers can help clarify patterns. Still, it’s best to consult a healthcare provider to rule out other causes before focusing on therapy for nausea and anxiety.

3. When Should I Seek Professional Help for Stress-Related Nausea?

You should seek professional support if nausea:

Lasts more than a few days.
Interferes with your ability to eat, sleep, or function.
Occurs alongside intense worry, panic attacks, or other signs of chronic stress.

Professional therapy for nausea and anxiety can help you identify triggers, calm your body’s stress response, and prevent symptoms from becoming chronic.

4. How Does Mission Connection Treat Nausea From Stress or Anxiety?

Our treatment focuses on healing the link between mind and body by using behavioral therapy, mindfulness-based interventions, and holistic stress-reduction techniques to help retrain your body’s response to anxiety.

By combining emotional processing, nervous system regulation, and stress management techniques, we can help you build resilience and confidence in your body’s ability to recover. The goal isn’t just to reduce nausea – it’s to restore lasting calm, balance, and control.

References

Harvard Health. (2023, July 18). The gut-brain connection. https://www.health.harvard.edu/diseases-and-conditions/the-gut-brain-connection
Leigh, S., Uhlig, F., Wilmes, L., Sanchez‐Diaz, P., Gheorghe, C. E., Goodson, M. S., Kelley‐Loughnane, N., Hyland, N. P., Cryan, J. F., & Clarke, G. (2023). The impact of acute and chronic stress on gastrointestinal physiology and function: a microbiota–gut–brain axis perspective. The Journal of Physiology, 601(20), 4491–4538. https://doi.org/10.1113/jp281951
Madison, A., & Kiecolt-Glaser, J. K. (2019). Stress, depression, diet, and the gut microbiota: human–bacteria interactions at the core of psychoneuroimmunology and nutrition. Current Opinion in Behavioral Sciences, 28, 105–110. https://doi.org/10.1016/j.cobeha.2019.01.011
Ressler, K. J. (2010). Amygdala activity, fear, and anxiety: Modulation by stress. Biological Psychiatry, 67(12), 1117–1119. https://doi.org/10.1016/j.biopsych.2010.04.027
Breit, S., Kupferberg, A., Rogler, G., & Hasler, G. (2018). Vagus nerve as modulator of the Brain–Gut axis in psychiatric and inflammatory disorders. Frontiers in Psychiatry, 9. https://doi.org/10.3389/fpsyt.2018.00044
Șchiopu, C. G., Ștefănescu, C., Boloș, A., Diaconescu, S., Gilca-Blanariu, G., & Ștefănescu, G. (2022). Functional Gastrointestinal Disorders with Psychiatric Symptoms: Involvement of the Microbiome–Gut–Brain Axis in the Pathophysiology and Case Management. Microorganisms, 10(11), 2199. https://doi.org/10.3390/microorganisms10112199
Curtiss, J. E., Levine, D. S., Ander, I., & Baker, A. W. (2021). Cognitive-Behavioral Treatments for Anxiety and Stress-Related Disorders. FOCUS the Journal of Lifelong Learning in Psychiatry, 19(2), 184–189. https://doi.org/10.1176/appi.focus.20200045
Kriakous, S. A., Elliott, K. A., Lamers, C., & Owen, R. (2020). The Effectiveness of Mindfulness-Based Stress Reduction on the Psychological Functioning of Healthcare Professionals: a Systematic Review. Mindfulness, 12(1), 1–28. https://doi.org/10.1007/s12671-020-01500-9