When having an atrial fibrillation, a person may go through light to heavy headedness. If our brain obtains the insufficient amount of oxygen, it results in the discomfort felt in the head. It seems like the world starts turning around, and people may lose coordination in space. They can faint without proper assistance. The reason is the rise in a heartbeat. Oxygen then is not equally spread to all organs.

Enteric discomfort. At the initial stages, patients who suffer from the atrial fibrillation may face a medium ache in the stomach. However, this feeling may become a real laceration with time. Various digestive problems can be associated with various diseases, but this one refers to AFib when accompanied by the other typical symptoms listed above.