Shortness of breath might not be anything to worry about, but sometimes it can be serious and you'll need to get medical help.
You could be having a heart attack or a problem with your lungs or airway.
Call 999 immediately as you need treatment in hospital.
It's important to get medical advice to make sure it's nothing serious. You're not wasting anyone's time by getting it checked out.
Shortness of breath has lots of different causes.
Any treatment you may need depends on what's causing your symptoms.
Don't try to self-diagnose the cause of your shortness of breath – always see a GP.