I feel like I'm dying when I try to fall asleep?

sleep paralyssi with hypnangogic hallucinations, what happens is sometimes, our bodies will fall asleep before our brains do and we are in between awake and alssp unable to move yet dreams are so frightening or vivid. The only way to break the cycle is to try and move just your eyes from right to left. These are a symptom of a sleeping disorder called narcolepsy but only when its accompanied by sleepiness during the day. otherwise it happens now and then to us all. go to sleepnet.com click on disorders then narcoepsy and read down to sleep paralysis and hypnangogic hallucinations.