activities you normally tolerate can sometimes be a warning sign of heart trouble.
Shortness of breath may occur with or without chest discomfort during a heart attack.
Pay attention if you suddenly:
- Become breathless after minimal activity
- Struggle to catch your breath at rest
- Feel that normal exercise has become much harder
- Develop breathlessness together with chest pressure or weakness
Shortness of breath has many possible causes, including lung disease, infections, anemia, anxiety, and heart failure, so persistent or unexplained symptoms should be evaluated rather than self-diagnosed.