Hope you feel better soon!
Dun,
In the past you wrote "The best way I can describe it is that I fall asleep and then wake up dead. I start to become conscious in the middle of the night, and feel as though I've exhaled without inhaling, my heart has stopped, and my hands and feet have died. Of course I then panic and wake up the rest of the way with a start, and inhale deeply and wiggle my fingers and toes and check my pulse, and after I move my hands they feel normal, and my breathing is normal, and my pulse is there and my heart is pounding. It's very strange and maybe it's all in my head, but it's frightening."
Did you find out what it was and how to fix it. I need your help.