I'm guessing you don't exercise and are in terrible shape and over 25? As you age, the body loses muscle and muscle plays an important part in making you feel r

I'm guessing you don't exercise and are in terrible shape and over 25? As you age, the body loses muscle and muscle plays an important part in making you feel right by regulating hormones like insulin etc. If you spend your life indoors you most certainly have vitamin-D deficiency, which leads to testosterone deficiency, which quickens muscle loss. Sedentary work without other activities is a recipe for feeling terrible, don't be surprised.