Why does panic disorder cause shortness of breath?

Shortness of Breath is a very common presentation of Panic Disorder. The sensation can be frightening even when the body is taking in air; it may feel like you cannot complete a satisfying breath or that your chest is too tight to breathe normally.

During panic, the nervous system prepares for danger. Your heart may race, chest and shoulder muscles can tense, and breathing may speed up. Breathing quickly can lower carbon dioxide in the blood, which may add tingling, light-headedness, chest discomfort, or a sense that more air is needed.

These physical sensations can then intensify fear and keep the episode going. Panic disorder involves recurrent attacks and ongoing concern or behavioural changes related to future attacks, rather than a single isolated spell of anxiety.

If this pattern has been assessed as panic, pause where you are and loosen anything tight around your chest or neck. Let the out-breath be gentle and slightly longer than the in-breath, without forcing deep breaths. Focus on a nearby object, name what you can see and feel, and remind yourself that the surge will pass.

Arrange a routine medical appointment if attacks recur. A clinician can check for other contributors to breathlessness and discuss treatment such as talking therapy, breathing and anxiety-management skills, or medicines when appropriate. Avoid using someone else's medication to manage an attack.

Seek urgent medical help for new, severe, worsening, or unexplained shortness of breath, especially with chest pressure or pain, fainting, blue or grey lips, confusion, coughing blood, swelling in one leg, or symptoms after a serious allergic reaction. Do not assume a new breathing problem is panic.

Get prompt assessment when breathlessness occurs with fever, wheezing, a new cough, reduced ability to do usual activities, or a known heart or lung condition. A panic episode and a physical illness can occur at the same time.

Ask whether your symptoms fit panic disorder or whether tests are needed for heart, lung, thyroid, anaemia, or medication-related causes. You can also ask which treatment approach suits your attack pattern, what to practise between episodes, and which warning signs should override your usual panic plan.