Am i at an increased risk of stroke? with atrial fibrillation, am i at increased risk of having a stroke?

Yes, : Yes, atrial fibrillation increases the chances of having a stroke because there is an increased risk of blood clots forming in the heart which can then travel to the brain. The risk is proportional to the amount of other stroke risk factors. In other words, the increased risk is small in people without other health conditions, but risk increases with additional risk factors such as advancing age, hypertension, diabetes, heart failure and if there has been a prior stroke. You should talk to your doctor about your stroke risk if you have atrial fibrillation. If the risk is moderate or high, this would warrant taking the blood thinner warfarin. If the stroke risk is small, you should at least take an aspirin.

Yes: If you possess atrial fibrillation, it should be cardioverted and/or controlled, and if not possible you should be taking an anticoagulant. Several choices, so discuss with your cardiologist.

Usually yes.: I'm assuming you're a woman, which makes the answer a definite "yes." the only question then is how much extra. Google yourself something called a "cha2ds2-vasc calculator" and plug in your info. The baseline population risk is ~0.8%/year for comparison.