Does anyone else experience uncontrollable twitching?

I was emotionally and physically abused growing up. My mother would constantly throw things and drag me. For the past few years, I’ve noticed that I have uncontrollable twitches and movements when I’m trying to stay still.

I mostly experience this when i’m trying to fall asleep. I’ve also noticed whenever someone is consistently looking at me, like when i’m getting my teeth cleaned or if i’m getting my hair done, my entire body twitches every few seconds. I feel extremely embarrassed when it happens.

Does anyone else experience this? And if so, does anyone know the cause/reasoning behind it?