ifif you expererience irregular r heartbeat,t, heart raracing, chesest pain, shortnesess of breatath, fatig, or l light-headededness, you shshould talkk to your r doctor. afib increreases the risk of stroke about 5 times i want my expeperience to help otothers undererstand the symptotoms of atrtrial fibrilillation. when it t comes to y your heal, thisis is no timime to wait.