Pretty much the same.
I had a relapse at the end of November and have been clean since, but for 3 days I pretty much experienced what you have.
Every time I lied down and shut my eyes, my mind would just race with images. Just bizarre and disturbing images would flash one after the other in my mind, none of them made any sense, just the weirdest things.
And the twitching for sure. If I was ever drifting off then my body would jerk and i'd have to turn the light on and sit up.
It's a huge relief once you get through those 3 days but those 3 days are super crucial because that's when the seizures would occur and that's why it's a good idea to see a doctor during those 3 days.