I didn't know about hypervigilance, but just read about it and can totally relate. Some of the symptoms have lessenned over the years, but this one is still an almost daily occurence.

My Pdoc was thinking about giving my some meds to sleep, but her reasoning for not doing it is that I don't look that tired when in session. She's right about that one but it's only because I work part time and catch up a lot of sleep during the day. I should start working full time soon and have no idea how I will able to deal with it.