Sounds like you are possibly lucid dreaming. If you are try to focus and redirect the dream to a happier place. If you can't try to force yourself awake.
The first time I had a lucid dream, it freaked me out, but I learned to embrace the journey if I can control it.
I get the foreboding sense a lot
I'm not currently on meds, but will take a benedryl to help alleviate anxiety. It usually helps more often than not, but sometimes I really need more than that.