It seems to be the one aspect of ptsd I can't beat....I will have a nightmare about the past or sometimes nothing particular happens at all....and then I can't stop ruminating on all the bad things that have happened to me all day. It makes me very depressed and disturbed and I end up eating junk or drinking to cope. I want this to stop but I don't know how. My therapist said to set a timer and stop thinking about it once it went off but that hasn't been working very well. What helped you guys?