Whats wrong w/ me?

I cant sleep! I have slept maybe 6 hours in the past 3 days! I get really tired if I stand up for to long but otherwise im wide awake! I havnt barley been able to eat for a week! I had MAYBE 100 calories today! Ive been drinkin alot of water though. I dont want to go to the hospital. I dont feel sick I just know this isnt healthy!