If you feel so weary or lethargic that you can’t do particular activities as well or as often as you once did, it’s important to make an appointment.

Even though fatigue is one of the most common medical complaints, you may feel hesitant about making a doctor’s appointment just to say you lack energy. But don’t wait until you’re so tired you can’t get out of bed before seeing a doctor. Perhaps you used to play golf once a week without any problem, but now you get winded during the course of the game. Or maybe, by the end of the day, you often feel too tired to cook dinner or go out to a movie. These are good reasons to see a doctor.