I lose weight when i'm hypo-manic because i'm so active all of a sudden. Doctors tend to take losing weight very seriously (if you're thin to begin with). My psychiatrist who wouldn't support me in taking private disability benefits was eager to write me a medical certificate when i had trouble eating for a month because of a new oppressive manager i got assigned to. I had such anxiety i didn't take him up on it because i was too afraid of the manager. But it's a serious business to lose weight when you're already thin so i hope you will seek some serious medical help. Not sleeping and not eating are the two questions every psychiatrist seem to regard as signs of crisis. Up here in Canada, as long as you're eating and sleeping they just call out, "Next!"