9Frequent Sleepiness
During atrial fibrillation, your body needs to use up your oxygen for more important organs such as kidneys, lungs, and brains. As a result, your alertness and energy will not be as usual and make you feel tired. This causes you to feel sleepy and drowsy even during the day. That’s why people with atrial fibrillation often take a nap to recover. The symptom would persist for weeks or even months if left untreated. In some severe cases, you might suffer from chronic insomnia, which makes it difficult to fall asleep at night. Over time, it will affect other functions in the body and trigger further complications. [9]
