- Have symptoms of a heart attack, such as chest pain or pressure, shortness of breath, and nausea.
- Have symptoms of a stroke, such as sudden vision changes; trouble speaking; or numbness, tingling, weakness, or loss of movement in your face or an arm or a leg.
- Feel faint and have an irregular heartbeat.
If you see someone pass out, call
Call your doctor if you have:
If you take a blood thinner
- You have a sudden, severe headache that is different from past headaches. (It may be a sign of bleeding in the brain.)
Call your doctor right away if you have any unusual bleeding, such as:
Who to see
The following health professionals can detect, diagnose and, in some cases, treat atrial fibrillation:
The following specialists can treat people who have severe symptoms: