not able to sleep kills

sheeesshshh... i can't sleep.. i have no idea why.. and its no because i drink coffee.. infact i dont drink coffee.. so why cant i sleep.. argh.. maybe i think too much... or maybe i'm just not tired.. but my eyes are closing .. slowly.. but when i go to my room.. i just can't sleep.. do u guys have any remedy for this weird action? FYI.. i havent been like this before.. this is some sort of my first time.. argh.. i feel like jumping off a building and never wake up again.. i'm writing this at 2 a.m.. and i'm not tired.. but i feel like sleeping ... argh.. help!!!