9. Difficulty Concentrating
Brain fog is a common symptom of someone who feels tired all the time. The fog can last for several days. The person may experience confusion, difficulty concentrating and short-term memory loss.
As a person rests, symptoms usually disappear. This depends on the cause of this symptom. Brain fog can also be caused by certain diseases, such as celiac.
Talking to your doctor will help you determine the best treatment for your specific case. The first step to feeling better and energized is to identify the cause of your tiredness.