It's known as a night time terror firstly. Not usual in older humans, I have them. It's infrequent and runs in household strains. I for my part get the equal factor, the "paralyzed" sensation is known as sleep paralysis; sleep paralysis too can carry on hallucinations, which might be a rarer sort of sleep paralysis. One rationale you possibly having those scary nightmares and paralyzed sensations would be in view that of a top precipitated strain. Other than that, the rationale you are having the paralyzed sensation is in view that your mind nonetheless hasn't registered that you are unsleeping, and as soon as it registers, your frame will recuperate. Your middle should be competent to revive to typical additionally, in view that, you are having an alarm response in view that, your mind thinks the nightmare is truthfully taking place, so that you simply have got to hit your relaxation interval while your frame ultimately realizes it was once only a nightmare. It's not anything out of the typical, and take a look at to manage with them, I realize they are able to get scary, I for my part sleep with a night time mild a few night time in view that I get so worried through them.