Get evaluated by a professional because if it is caused by a chemical imbalance in your body, it is treatable with meds and therapy. If it is psychological, it can be treated with therapy. If this doesn't cheer you up, then you do have a problem: Did you hear the story about the depressed paranoiac? Not only was his glass only half full, but it was half full of poison. Did you hear the one about the conjoined twins one of whom had an inferiority complex? He always introduced his twin as his better half. Do you know the difference between a neurotic and a psychotic? A neurotic builds a sand castle in the sky. A psychotic moves into it. In any case, don't spend your time obsessing about your symptoms. Do something about them. With modern treatment available everywhere except in Wappingger's Falls, you need only let your fingers do the walking through the Yellow Pages. Help is a phone call away.