No where to turn

I have never felt so desperate in all my life.  On Boxing Day 2013 I started tremoring in my arm. It was so bad that I went to the emergency rooms, who ran a load of blood tests and then sent me for a brain MRI.  The results all came back normal. Is it crazy that in a way I almost hoped that they would find a tumour, or something, anything, that would explain these nightmares.  I have depression caused by the constant lack of sleep from these nightmares. My depression is never going to go away until these nightmares stop which is a very scarey thought to have.  Suicidal thoughts have even crossed my mind, but I honestly really DON'T want to die, I just want my life to change. I don't want to live a life in a cycle of depression, anxiety and nightmares.  I cannot explain to someone what it feels like to be gravely afraid of going to sleep at night, but at the same time being beyond exhausted.  My dreams are so vivid i feel as if all these dreams, I have seen these things in real life.  According to Wikipedia, the average adult has 2-3 nightmares a year.  That is a good night for me!!  I would do anything, pay anything, give anything to find the answer to this, and when I do (which I have to believe I will or I'll go insane) I will spread the word and help others.  I am tired of phoning my parents in tears saying I can't take it anymore, when I know that there is a nothing they can do about it.  When I read up on nightmare disorder, most material online says "relax" "yoga" "meditation".  I read this as "we can't help you".  I just want it to end now.  I want to go out there and live life to the absolute full, but that isn't going to happen whilst I am this tired, and on so much medication.