Panic and body reactions: racing heart, shaking, feeling trapped
A pounding heart, shaking or an urge to escape can occur when the body’s alarm system is active. The sensations are distressing, and practical support can help.
Approved by Dr Rob Endicott
Last reviewed September 2026
General information, not personal medical or dental advice.
Your body's alarm, explained
When your brain decides something is a threat, it releases adrenaline. Your heart speeds up, your breathing changes, your muscles tense and you may feel hot, shaky or sick. This is the fight-or-flight response doing exactly what it evolved to do.
These sensations can feel alarming and often settle as the sense of threat reduces. If symptoms are new, severe or not typical for you, seek appropriate medical advice rather than assuming they are anxiety.
What feeds panic — and what starves it
Frightening interpretations can intensify panic. Some people find that a slower, comfortable out-breath and attention to a clear stop signal help them feel less trapped; neither should be forced if it feels unhelpful.
Feeling trapped can intensify panic. A stop signal and agreed breaks can provide a clear way to pause rather than asking you to endure increasing distress.
If panic attacks are part of your life
If panic affects other parts of your life, you may wish to discuss it with your GP or an appropriately qualified psychological professional. CBT is one option that may be considered.
Things you can try
- Practise breathing out slowly — longer out than in — for a minute each day, so it is automatic when you need it.
- If it helps, name the sensation without judging it: ‘my body’s alarm system is active’.
- Agree how you can request a pause and what options are safe if you feel overwhelmed.
Sources
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Start your assessmentRelated guides
- Feeling out of control — and how a stop signal gives it back
Lying back in the chair while someone works in your mouth can feel like handing over all control. Simple agreements with the team hand it back.
- CBT, psychological support and when to consider professional help
Cognitive behavioural therapy (CBT) is one evidence-based psychological approach used for dental anxiety. It may help people examine fearful predictions and avoidance patterns.
- Feeling faint or fainting at the dentist
Feeling faint around needles or dental treatment can be a physical reflex. Tell the team beforehand so they can plan positioning, pacing and support.
If you have dental pain, swelling, an injury or bleeding, seek dental advice now — do not wait. This guide is general information and does not replace care from a dentist, doctor or mental-health professional.