What Does AFib Feel Like? You might feel a flutter or quiver in your chest when your heart beats . Your heart might beat faster than usual, pound, or race. The feeling often lasts for a few minutes.
Read moreHow do you rule out atrial flutter?
An ECG can show if the heart is beating too fast, too slow or not at all . An ECG is the main test for diagnosing atrial fibrillation. Blood tests. These help a doctor rule out thyroid problems or detect other substances in the blood that may lead to A-fib .
Read more