Somatic symptoms: when stress and anxiety show up in the body

CareOps editorial team · October 28, 2026 · 10 min read

Mental wellness information and service guidance published by CareOps.

Your head throbs and your chest feels tight, so you see a doctor, and the tests come back normal. It's a relief, but it's also frustrating: you really do hurt, so why is nothing wrong? When this keeps happening, many people come across the word “somatization.” Here is what somatic symptoms are, how anxiety and the body are linked, and in what order to seek medical and psychological care.

What are somatic symptoms? What does somatization mean? #

Somatization describes difficulties such as stress, anxiety or low mood showing up as physical symptoms. The body and mind don't act separately: your shoulders tense when you're stressed and your heart races when you're scared. When those reactions happen often and for a long time, they can become genuinely distressing symptoms such as headaches, chest tightness or stomach trouble. So somatic symptoms are real symptoms, not faking or exaggerating.

The clinical diagnosis is somatic symptom disorder. The DSM-5 considers it when one or more distressing physical symptoms disrupt daily life, when thoughts, worry or time spent on those symptoms are excessive, and when this usually lasts more than six months. Notably, being “medically unexplained” is not a requirement. Even when there is a physical illness, the way symptoms take hold of your thoughts can be worked on too. A diagnosis is made in a clinical visit.

Common somatic symptoms: from headaches to a racing heart #

Somatic symptoms don't always stay in one place; they can move around. These are the ones people mention most.

• Head: throbbing headaches, dizziness, a heavy feeling in the head
• Chest and heart: chest tightness or pain, a pounding heart, feeling short of breath
• Stomach: stomach pain, indigestion, nausea, constipation or diarrhea
• Muscles and joints: stiff neck and shoulders, back pain, pain in the arms or legs
• Fatigue and sleep: tiredness that rest doesn't fix, trouble falling or staying asleep

This is more common than people think. An analysis of 32 studies from 24 countries covering about 70,000 primary care patients (Haller et al., 2015) estimated that roughly 40 to 49 percent reported at least one symptom without a clear medical explanation. You are far from alone.

Somatic symptoms of anxiety: why do headaches and a racing heart happen? #

When you feel anxious, your body prepares for danger: your heart speeds up, your breathing gets faster, your muscles tighten and digestion takes a back seat. That's natural for a short stretch, but when worry and stress go on for weeks or months, the body stays in that state without rest. A neck and shoulders that stay tense can turn into headaches, and a heart that keeps racing with shallow breathing can feel like chest tightness and palpitations.

That's why somatic symptoms often come with anxiety or depression. In a study of 2,091 primary care patients (Löwe et al., 2008), depression, anxiety and somatic symptoms overlapped in more than half of cases. For anxiety symptoms more broadly, see anxiety disorder symptoms. In Korea, long-held anger and a sense of unfairness showing up as chest tightness or heat is called hwa-byung.

Physical symptoms and worry can also feed each other in a loop: a body sensation → “Is something wrong with me?” → more tension → the sensation feels stronger. The more attention goes to a symptom, the bigger small sensations feel, and that worry tenses the body again.

Tests are normal, so why does it still hurt? #

“Normal results” means the tests you had didn't show evidence of a dangerous illness. It doesn't mean you're not in pain or that you're imagining it. It's natural to feel relieved and frustrated at the same time: “Then what is this pain?” In that situation it helps to ask your doctor: are there any warning signs to watch for, what changes should bring me back, and what can I do day to day to ease the symptoms?

Repeating tests for the same worry can lock in a loop of brief relief followed by the urge to check again. If the worry about having a serious illness is bigger than the symptoms themselves, read our guide to health anxiety.

Should you see a psychiatrist? A doctor first, then the mind #

Here's the order. New or worsening physical symptoms should first be checked by a doctor, such as an internal medicine physician. If symptoms and the worry about them keep disrupting daily life after that, it's time to work on them with a psychiatrist or psychologist as well. Medical and mental health care aren't an either-or choice; they can go together. Whether medication is needed is decided with your doctor.

How is it treated? How CBT helps #

Cognitive behavioral therapy (CBT) has the most research for somatic symptoms. A meta-analysis of 15 randomized controlled trials with 1,671 people (Liu et al., 2019) found that CBT reduced physical symptom severity along with anxiety and depression and improved physical functioning, and the reductions in physical symptoms, anxiety and depression held up at follow-up. Another analysis of 27 studies of short-term psychotherapy (Kleinstäuber et al., 2011) found the difference from control groups to be small. It's realistic to expect symptoms to ease gradually while daily life opens back up, rather than vanish all at once.

• Examine the thoughts about body sensations: check whether thoughts like “My chest is tight, so something must be wrong with my heart” are facts, and whether there's another way to see it.
• Gradually return to what you've avoided: restart exercise or plans you cut back on because of symptoms, starting small.
• Cut back on checking and searching: set a limit on how often you monitor or search your symptoms, and lower it over time.
• Practice letting go of tension: build the experience of your body settling through slow breathing and muscle relaxation.
• Address the sources of stress: look at the worries or relationship struggles underneath the physical symptoms.

To learn more about examining thoughts, see what CBT is.

Five things to try when symptoms flare #

1. Keep a symptom diary: briefly note when a symptom came, what you were doing and how you felt. After a few weeks you may see times when symptoms and stress move together.
2. Breathe out slowly: make your out-breath a little longer than your in-breath, a few times in a row. See our breathing exercises for how. If you feel dizzy or more short of breath, stop and breathe normally.
3. Move your body gently: add even a short walk to your day. It loosens tight muscles and helps you trust your body again.
4. Take back one thing you've dropped: pick the easiest activity you stopped because of symptoms and restart it in a small way.
5. Name what you're feeling: when your body hurts, ask yourself, “What am I feeling right now?” Our guide on naming emotions explains how.

How much are physical symptoms bothering you? The PHQ-15 check #

The PHQ-15 asks how much 15 common physical symptoms, such as headaches, chest pain, a pounding heart, indigestion and fatigue, bothered you over the past four weeks. Kroenke and colleagues (2002) developed it with 6,000 patients; each symptom is scored 0 to 2, and 5, 10 and 15 points mark low, medium and high severity. It isn't a diagnosis; it helps you gauge the current weight of physical symptoms and track how it changes over time. You can take it right away, with no login.

If you want help untangling what your body is telling you #

Physical symptoms are for a doctor to check, and the worry and stress built up underneath can be put into words and worked through. CareOps Maeumi is an AI counseling app that runs sessions with approaches such as cognitive behavioral therapy (CBT) and acceptance and commitment therapy (ACT), helps you look at the thoughts and feelings around your symptoms, and remembers past sessions so the next one picks up where you left off. Get the app

This guide shares mental wellness information. If you are in immediate danger, contact emergency services where you are. Support and contact information.