That tight, heavy, or churning feeling in your stomach isn’t just “in your head.” Your gut has its own nervous system containing hundreds of millions of nerve cells, and it responds directly to psychological stress. When trauma goes unprocessed, the gut often becomes the place where that stress lives, showing up as chronic tightness, nausea, digestive problems, or a knot that never fully loosens. Releasing it involves working with both the body and the nervous system, not just talking through the experience.
Why Trauma Gets Stuck in Your Stomach
Your gut contains what scientists call the enteric nervous system, sometimes nicknamed the “second brain.” Research published in Cell found that this system acts as a direct relay between psychological stress and physical inflammation in the intestine. When stress hormones like cortisol stay chronically elevated, they change the nerve cells and immune cells in the gut wall, triggering inflammation, disrupting normal movement of food through the digestive tract, and reducing the gut’s supply of acetylcholine, a chemical needed for healthy digestion.
There’s also a major muscular component. The psoas, a deep core muscle that runs from your lower spine through your pelvis to your thigh, is heavily wired with sympathetic (fight-or-flight) nerve fibers. When your body perceives a threat, the psoas contracts to curl you forward, protecting your abdominal organs. If that contraction never fully releases, whether because of ongoing stress, a sedentary lifestyle, or unresolved trauma, the muscle shortens and stays tight. A chronically contracted psoas restricts breathing, inhibits digestion, and creates that persistent sense of tension deep in the belly.
A large-scale study published in the Proceedings of the National Academy of Sciences found that people who experienced childhood maltreatment reported significantly more negative physical sensations in the abdomen and lower back compared to those who didn’t. The connection between early trauma and stomach-area symptoms, including chronic pain, gastrointestinal disorders, and fibromyalgia, has been confirmed across multiple meta-analyses. Nearly 65% of people with fibromyalgia had a history of childhood maltreatment.
Recognizing the Signs
Trauma held in the stomach doesn’t always feel like a “knot.” It can show up as irritable bowel symptoms, chronic nausea without a clear medical cause, a feeling of heaviness after meals that isn’t related to what you ate, or a reflexive tightening of your core when you feel emotionally unsafe. Some people notice they unconsciously hold their breath or breathe only into the upper chest, never allowing the belly to expand. Others describe a persistent sense of dread located below the ribcage, separate from any identifiable anxious thought.
Negative interoceptive sensations like stomach tension and elevated heart rate can also influence decision-making, cognition, and emotion, creating a feedback loop where the physical sensation itself maintains a state of vigilance. If your stomach feels “off” most of the time and medical workups haven’t found a structural cause, the nervous system is a reasonable place to look.
Diaphragmatic Breathing
The simplest starting point is retraining how you breathe. Diaphragmatic breathing, where you breathe deeply enough that your belly expands on each inhale, directly activates the vagus nerve, the main communication line between your brain and your gut. In a controlled study of healthy adults, participants who practiced slow diaphragmatic breathing (around four breaths per minute) over eight weeks showed significantly lower cortisol levels compared to a control group. Lower cortisol means less of the hormonal signal that drives gut inflammation and tension.
To practice: sit or lie down, place one hand on your chest and one on your belly. Breathe in slowly through your nose, directing the breath so your belly hand rises while your chest hand stays relatively still. Exhale through your mouth for longer than you inhaled. Even five minutes daily can begin to shift your nervous system out of its protective mode. The goal isn’t to force relaxation but to give your body a consistent signal that the threat has passed.
Releasing the Psoas
Because the psoas is a primary muscle of the fight-or-flight response, releasing it directly can help unlock stored abdominal tension. A few accessible approaches:
- Constructive rest position. Lie on your back with your knees bent and feet flat on the floor, about hip-width apart. Let your knees lean against each other so you don’t have to hold them up. Stay here for 10 to 20 minutes. Gravity gently allows the psoas to lengthen without any active stretching, which can sometimes trigger a guarding response.
- Supported bridge holds. From the same position, lift your hips and place a yoga block or firm pillow under your sacrum (the flat bone at the base of your spine). Let your weight rest on the support. This opens the front of the hip and gives the psoas space to release.
- Gentle hip flexor stretches. A low lunge with the back knee on the ground, held for 60 to 90 seconds per side, allows the psoas to gradually lengthen. Avoid forcing depth. The point is to stay at a level of stretch where your body doesn’t brace against it.
Don’t be surprised if these positions bring up unexpected emotions. Trembling, a wave of heat, or a sudden urge to cry are all normal responses when a chronically held muscle begins to let go.
Somatic Practices for the Gut
Somatic exercises work by drawing your conscious attention into parts of the body that have been held in a protective pattern, then gently introducing movement or sensation to interrupt that pattern. Johns Hopkins Medicine offers a somatic self-care program built around several practices particularly relevant to abdominal tension:
- Three-dimensional breathing. This expands on basic diaphragmatic breathing by directing the breath into the sides and back of the ribcage, not just the front. It engages the full architecture of muscles around the core and can loosen restrictions you didn’t realize you were holding.
- Seated pelvic shifts. Sitting on a firm surface, slowly rock your pelvis forward and back, then side to side. This mobilizes the deep core and pelvis in a controlled way, building a sense of stability and voluntary control over an area that may feel locked.
- Releasing weight through imagery. This technique uses mental images (like imagining your organs softening downward, or your spine lengthening) to facilitate a shift in how you physically hold tension. It sounds abstract, but the nervous system responds to vivid imagery in measurable ways.
These practices work best when done slowly and with full attention on what you feel, not on achieving a particular position or outcome. The release happens through awareness, not effort.
Visceral Manipulation
Visceral manipulation is a hands-on therapy performed by trained practitioners (often physical therapists or osteopaths) who use very gentle compression, mobilization, and elongation of the soft tissues around internal organs. The therapist feels for areas of restricted movement in the abdomen and works to restore normal mobility. Unlike deep tissue massage, the touch is light. Some people experience emotional releases during sessions, including tears, memories, or temperature changes, as the tissues soften.
This isn’t something you do at home. If you pursue it, look for a practitioner certified through the Barral Institute or a similar recognized training program.
What Release Actually Feels Like
People often expect a single dramatic moment, but releasing trauma from the stomach is typically gradual. During any session of bodywork, breathwork, or somatic practice, you may notice tingling, warmth, or a sense of energy moving through the abdomen. Muscle twitching or involuntary shaking is common and is a sign that stored tension is discharging. Some people cry, laugh, or feel a flash of anger without a clear trigger. Breathing often shifts on its own, becoming deeper or temporarily irregular.
Afterward, many people describe feeling physically lighter, as though a weight has been lifted from their midsection. You may also feel tired. Releasing trauma is physically and emotionally demanding, and fatigue in the hours or days following is normal, not a sign something went wrong. Vivid dreams or surfacing memories can occur as your nervous system processes what was stored. Over weeks and months of consistent practice, people typically notice improved digestion, less baseline anxiety, and a greater ability to breathe fully into the belly without resistance.
When to Be Cautious
Deep abdominal bodywork carries some contraindications. Avoid visceral manipulation or deep abdominal massage if you have deep vein thrombosis, an active infection, an acute abdominal condition, or a known malignancy in the abdominal area. Pregnancy is a relative contraindication for deep abdominal work, meaning it should only be done by someone specifically trained in prenatal care. If you have inflammatory bowel disease, work with a practitioner who understands your condition, since abdominal manipulation could potentially worsen a flare.
On the psychological side, if your trauma history involves severe dissociation or complex PTSD, jumping into intense body-based release work without a therapist’s guidance can sometimes overwhelm the nervous system rather than help it. Starting with gentle breathwork and building from there gives your body time to increase its capacity for sensation before you go deeper. A trained somatic therapist can help you titrate the process so it stays within a range your system can integrate.