Sounds like a Night Terror to me , especially the Paralysis.
I had frequent Night Terrors as a Girl.
I would wake abruptly in the middle of the Night when I'd only just fallen asleep, go to turn my light on but no light came on and I couldn't open my bedroom door or call out. It was as if my Soul/Spirit was out of my Body because I couldn't make contact with the Physical World but it's very hard to explain.They Terrified me as a Child and I never spoke about them to anyone until I was 22 because I thought others would think me Nuts..
I thought I was a Ghost the first time.
I still get them if I'm extremely Stressed and my Anxiety levels are through the roof for some reason but they are rare these days thankfully.
Once in a very Blue Moon.