I voted as having non-specific nightmares. This goes in phases for me. I can go a great deal of time without any nightmares but when they do happen they seem to happen in clusters and become quite disruptive. (Why else would I be sitting at my computer at 4:00 AM?) I say non-specific but I don't really have any recollection of what the nightmares are about. I wake up startled, scared, very unsettled and vulnerable feeling. I know that I've had a bad dream but don't know what it was about. My husband says that when these are happening I get very "twitchy" in my sleep...his way of describing how I move and thrash around a lot...and I talk in my sleep but not usually anything that he can understand.