Frequently since I got this immune system nightmare, I almost get to sleep and then, right before I get there, I am literally "jolted" by some electric zap type feeling that shocks me back awake. I can actually feel my body convulse or "jump" when this happens. And every night that this happens, the rest of the night I can't get to sleep afterwards. The entire night is a non-sleeper for me. What in the world is this body jolting "zap?" Appreciate any responses.