Bad sleeping difficulties.

Well i have this problem with trying to fall asleep..It's like i'm tired and so are my eyes so when i shut my eyes and i start thinking about something all of a sudden my mind takes over and controls it and turns it into a night mare!:S and i can't control it! and i start shaking but i can't control that and i can't move any part of my body and it's like i'm trying but i'm trapped and then i hear these noises like once i heard a laugh from a girl in my class and it got louder and louder and the dream got worse but i couldn't wake myself up..and i tried and tried but nothing would budge! it was like i was trapped inside myself inside a dream where i couldn't control anything! and then eventually i do wake up but with a headache from how iv'e been trying to force myself to wake up, this started when i was young and it hardly ever happened so it didn't bother me..But lately it's gotten worse and iv'e had it 3 times in one night! so i'm concerned! and iv'e looked it up and all i found was Sleep paralysis and Lucid dreaming Please help?! advise on how i could stop this? or help myself? because it's getting me worrying and stressed thanks.