My nightmares.

Ok, so lately I have not smoked any weed, racked any bars, I haven't drank any alcohol or done any drugs...nothing. I have been completly sober for a good 4 weeks now, but now I am expiriencing sever nightmares. I litterally am so scared to get tired, and just petrified of going to sleep. I've never had anything symptoms like this before, I am waking up in the middle of the night (like right now) and I am shaking uncontrollably. I don't know whats happening, but the dreams that I am having are scaring the shit out of me. I wish I wasn't having these nightmares as I mentioned I am waking up in the middle of the night with severe cold sweats and rapid breathing like I've been running away from something the whole fucking night. I have no fix for this and that where I need help. I don't know if I should start taking Ambien again, it really sets me back when I do take it. It helps me sleep but then it knocks me out cold for a long time, I end up waking up to late and being late to class and very groggy when I am at practice. I am just not myself during the day when I am on a Ambien regement. This is so serious for me I never had these kinds of dreams before, I can tell you about them if you would like just send me a pm and I will explain. I have to warn you though my dreams are very wicked. I am just so afraid to close my eyes for what I am seeing is just way to unexplainable. I am taking a ambien tonight because Its the weekend and I don't have school or practice so I am safe for tonight and I know I will get a good sleep, but it still doesn't help the fact that I am trying my hardest to quit taking pills and quitting all these drugs that have ruined my past, but seriously I am regretting taking all those drugs for now I am haunted in the middle of my sleep I am seeing things so vivid that I am scared of sleeping now. I just hope that these go away I am so petrified of what I am going to see next...