What you're feeling is indeed part of the PTSD. Have you ever heard of the 7 stages of grief? They're in a book called "On Death&Dying" by Elizabeth Kubler Ross. That title doesn't sound like it applies, but it does make sense once you read it. And just because you go through a stage&think you're done with it, doesn't mean you won't come back to a stage again. It's the PTSD.