I agree with the last poster. Your doctor should check you out for any physical problems - diabetes, anemia, etc. I, too, had low energy and general lack of caring about anything, also, muscle aches almost like complete fatigue. After a physical, my doctor ruled out other illnesses and put me on lexapro. It took away the anxiety, but my emotions were still flat. After a few months, I weaned off it. Last September, I started on cymbalta. Within two weeks my energy was back and no more fatigued muscle aches. See your doctor. You can get better.