Hello quietincrowd: I read your post. I'm afraid I don't know the answer to your question. It has occurred to me that I may have some PTSD although I've never been diagnosed as having it. (Actually I've never received any kind of formal diagnosis...) My thinking, with regard to dreams, is that they simply reflect what is on a person's mind, except that they develop without the benefit (or lack thereof) of the conscious mind.
I actually seldom remember my dreams. And when I do, they rarely seem to make much sense. Allot of the ones I do recall seem to have something to do with escape in some way or another. This makes a certain amount of sense since I often imagine what it would be like to simply walk away from everything. My dreams seldom, if ever, relate to a new event, since my day-to-day life is pretty mundane & there are seldom new events in it.
My best wishes to you...