Fatigue may be related to: Alcohol or drug use Excess physical activity Jet lag disorder Lack of physical activity Medications, such as antihistamines, cough medicines Not enough sleep Unhealthy eating habits. Feb 03, · Your fatigue might be related to an underlying illness or infection, especially if it's accompanied by symptoms, such as a low-grade fever, shortness of breath, or loss of appetite.
Jul 22, · Here are some suggestions: Keep a fatigue diary to help you find patterns throughout the day when you feel more or less tired. Exercise regularly. Almost anyone, at any age, can do some type of physical activity. If you have concerns about Try to avoid long naps (over 30 minutes) late in the day.