I have spells that make my whole body go to sleep, my breathing gets shallow heart rate lowers, body goes limp, and can not hold my eyes open. I can though hear what is going on just can not respond in any way and I also do not loose bowel or bladder control. I have been to sever doctors that do not know what causes. It is not sure, heart problems, and nothing comings up when they had probs on my head. Does it sound like anxity or a sever sleeping disorder????