Cant sleep, too scared......... please help?

well erm stupid i know, i watched ghost hunters today on tv (not as bad as ghost adventures i know and probably fake aswell :L) but then i started to like it and watched more on you tube. yeh not a good idea, im only 12 and i cant get to sleep. i was okay but everytime i shut my eyes, something creepy that happened on the show comes back into my head and i get this weird churning feeling in my stomach like im about to upchuck. can anybody help me? thank you! :D