What are the common symptoms of atrial fibrillation?

Sometimes none: Highly variable: some people are entirely unaware. Others feel their heart beating irregularly or "fluttering" & may notice rapid heart rate. Commonly people notice fatigue and their exercise capacity is mildly reduced. Sedentary people usually don't notice any change. Younger people & folks with their 1st bout tend to be more aware. Frequent bouts and older people are less likely to notice.

Several: Palpitations, shortness of breath, heavy or pressure sensation in the chest are all frequent symptoms. Sometimes weakness or marked fatigue can occur. You can feel your pulse in your wrist or neck and check if it's irregular. While other conditions can cause an irregular pulse, atrial fibrillation is one of the more common reasons.