Does anyone know anything about nocturnal seizures? I've been having weird occurrences in my sleep.

Last night I woke up in the middle of the night and I felt very dizzy and all my muscles felt exhausted. I also felt like my feet/leg muscles were spasming a bit and I couldn't control it. I tried to get up to use the bathroom and everything felt very, very spinny and nauseous. Vertigo?

Today I don't feel spinny anymore, but it was pretty frightening.

I also often have sleep paralysis. I've never had that in my life till this last concussion. I read this can occasionally indicate nocturnal seizures.

Sometimes I also awake from sudden neck spasms in my sleep

It's probably nothing, but I'm a little spooked.