I've rocked in the past, and I am on the ADHD/AS end of the spectrum. You can rock and be an Aspie. The lines are not clearly defined and repetitive behaviours (stims) are part of the diagnostic criteria in the DSM.
Moving was a big thing for me all through childhood and as a teenager. I moved both voluntarily and involuntarily. I was the one who chomped the gum, chewed on the pencil and constantly moved when others wanted me to sit still. I fidgeted on a constant basis. I also liked moving things, rocking things back and forth, pusing people in swings, even when there wasn't anyone in the swing...I would pust hit just to see it move. I was very motion oriented. It's so
hypnotic, kind of like Cobras fascinated by the steady, predictable motion of a moving basket lid, listening to music. That's sorta like me when driving a car. The music and the driving causes me to feel relaxed.
i dont think i move involuntarily or ever have.
however if someone tells me not to move....it is torturous. i once went in an MRI scan for 15 minutes...it was HELL.