Symptoms

Some people with atrial fibrillation (A-fib) don't notice any symptoms. Those who do have atrial fibrillation symptoms may have signs and symptoms such as:

• Sensations of a fast, fluttering or pounding heartbeat (palpitations)
• Chest pain
• Dizziness
• Fatigue
• Lightheadedness
• Reduced ability to exercise
• Shortness of breath
• Weakness

Atrial fibrillation may be:

• Occasional (paroxysmal atrial fibrillation). A-fib symptoms come and go, usually lasting for a few minutes to hours. Sometimes symptoms occur for as long as a week and episodes can happen repeatedly. Symptoms might go away on their own. Some people with occasional A-fib need treatment.
• Persistent. With this type of atrial fibrillation, the heart rhythm doesn't go back to normal on its own. If a person has A-fib symptoms, cardioversion or treatment with medications may be used to restore and maintain a normal heart rhythm.
• Long-standing persistent. This type of atrial fibrillation is continuous and lasts longer than 12 months.
• Permanent. In this type of atrial fibrillation, the irregular heart rhythm can't be restored. Medications are needed to control the heart rate and to prevent blood clots.

When to see a doctor

If you have any signs or symptoms of atrial fibrillation, make an appointment with your doctor.

If you have chest pain, seek immediate medical help. Chest pain could mean that you're having a heart attack.