you know, i used to be a waitress and i would get in what i called "super duper waitress mode" running around like a madwoman. I think this was a mild form of mania. unfortunately i just stopped going to work during one of my depressions claiming i hated it (though it really wasnt that bad).
mania is a strange thing, but being at work sometimes i was manic. Also sometimes i was depressed and talked the whole time about how i wanted to go home and how i hated being there, but i have extremely mixed mania.
Also i stayed awake for about two weeks, meaning about an hour or less of sleep per night if at all. But it made me grouchy during the day, very tired even though i couldnt sleep during school (sometimes i did anyway) and very pessimistic.
My advice is try to get some sleep and you didnt mention if you were on meds, but many meds when taken at night can help with the sleeplessnes. I know it feels like you dont need the sleep but eventually our bodies are built to crash without it.
I hope i was of any help