my fists. I am on olanzapine, trazadone, geodon and hydroxyzine. my doctor blows me off and said that I don't have PTSD and would not consider any other option that may be causing these nightmares. I am affraid to go to sleep after having one. I get up and drive around the interstate or drive 45 miles to my mothers house in the middle of the night to get relief. What might be causing this.