I have the most horrific nightmares and the drug Prasosin did a lot of good. I had yelling and thrashing in the bed which is a bit unnerving to my family, but I don't wake up or remember. This is starting again. also right before i fall asleep I have a total spasm of my body, which hurts muscles. I have quit sleeping, as possible, and terrible headaches. what is this? I am getting quite sick from all this. Any medications?