Maybe I'm having a stroke
Last night was bizarre ... I don't even know how to describe it properly. All I can say is that I would be in a dream, when a thunderous white light would blast the dream holodeck. I would be shaken, and the holodeck itself was changed dramatically, or completely.
One instance I can recall now is minding my own business, driving down a busy highway, suddenly being blasted by the white light, and the scene changed dramatically. I was now walking down a deserted highway, looking around ... or maybe everyone else was dead along the sides of the road, I can't remember now. (I may be combining dreams.)
This didn't happen just once, it happened many times, with more dramatic changes to the environment than I just described, and again, I don't have the words to describe it well. I just remember thinking, "Something is very wrong, maybe I'm having a stroke ... if I survive this night I need to make an appointment with my doctor".