Jackobs Ladder Research

I watched this film the other night and it gave me a few ideas about mine and Ashes movie. Its basicaly about a guy who feels psychological after effects from the Vietnam war. This is portrayed by hallucinations and physical trauma's , me and Ash thought that these would be good themes for are film. We'd like to be dealing with a characters who's mentaly and physically traumatized ( sounds weird though most horror films are weird)