Recovering alcoholic, it’s really common for people to have dreams where they relapse, and when you wake up it still feels real for a moment, which is awful. The first one I ever remember having was Bill Murray of all people lining up these rainbow colored shots for me, then I drank all of them. Woke up with the overwhelming feeling of dread and regret, like it had actually happened. Then I realized I’ve never met Bill Murray and I doubt he works as a bartender these days.
I have PTSD as well but those dreams are much more straightforward. Most of my stress dreams these days are either dreams of relapsing or something where my car breaks down.