What Happens in Your Body When You’re Feeling Anxious?
Updated: Oct 16
If your heart races, your chest tightens or your stomach churns when you’re anxious, your body isn’t letting you down. It’s doing exactly what it was built to do. Here I explain what happens in your body when you feel anxious, why it can happen even when there’s no real danger, and some simple ways to help your body settle.
Anxiety is a whole-body experience
Anxiety isn’t just “in your head”. It’s something you feel in your whole body. As a counsellor, I often explain to clients that what they’re feeling is a natural response, even if it feels overwhelming or confusing in the moment.
The fight, flight or freeze response
When we feel anxious, our brain detects a potential threat, whether real or imagined, and triggers what’s known as the “fight, flight or freeze” response. This is your body’s way of keeping you safe: an ancient survival mechanism designed to prepare you to face danger.
The moment this alarm goes off, your brain signals the release of stress hormones like adrenaline and cortisol. Your heart speeds up, your breathing becomes quicker and shallower, and your muscles tense, all to get you ready to act.
Common physical signs of anxiety
Everyone’s body responds a little differently, but people often notice:
A racing or pounding heart
Quick, shallow breathing, or feeling that you can’t get enough air
A tight chest or a lump in your throat
A churning stomach, nausea or needing the toilet
Tense shoulders, a clenched jaw or headaches
Sweating, or feeling suddenly hot or cold
Feeling dizzy, shaky or light-headed
Restlessness, or finding it hard to sit still or sleep
Feeling detached, as if things aren’t quite real
These feelings can be frightening, but they are signs of your alarm system at work. If you notice new or worrying physical symptoms, especially chest pain, it’s always worth checking with your GP first.
Why your body reacts when there’s no real danger
Here’s the catch: in modern life, the “threat” isn’t usually a wild animal. It’s more likely an upcoming presentation, a difficult conversation, or even just a racing thought. Your body reacts in the same way, even though there’s nothing you need to physically run from.
Over time, the alarm can become oversensitive, going off in response to everyday stress as if it were life-threatening. Past experiences play a part too. If you have been through something frightening or overwhelming, your nervous system may stay on high alert long after the danger has passed. And the more we avoid what makes us anxious, the more the brain learns that it must have been dangerous after all.
Anxiety is not a sign of weakness or of something being “wrong” with you. It’s your body trying to protect you.
Simple ways to help your body settle
You can’t switch anxiety off, but you can help your body realise it is safe. A few things that help many people:
Lengthen your out-breath. Breathe in gently through your nose, then breathe out slowly for a little longer than you breathed in. A longer out-breath tells your body it can slow down.
Ground yourself. Name five things you can see, four you can hear and three you can touch. It brings your attention back to the present moment.
Soften your body. Drop your shoulders, unclench your jaw and let your hands rest.
Move. A brisk walk can help use up some of the energy your body has prepared.
Name it. Saying to yourself, “this is my alarm going off”, can take some of the fear out of the feeling.
Go easy on caffeine. Coffee and energy drinks can mimic and amplify the physical signs of anxiety.
How counselling can help
In counselling, we work on calming this response through breathing and grounding techniques, and by exploring the thoughts, patterns and experiences behind the feelings. By learning to recognise what’s happening in your body, you can begin to respond differently and help your nervous system feel safe again.
When anxiety is linked to difficult past experiences, EMDR therapy can help those memories feel less charged, so your body no longer reacts as if they are still happening. I see clients in a calm, supportive space in Solihull and online.
If anxiety feels like it’s taking over, you don’t have to face it alone. You’re welcome to book a free 20-minute consultation to explore how counselling can help you regain calm, confidence and control.
