My girlfriend was forced to go off of abilify once due to financial issues when we lost insurance coverage briefly and simply could not afford it for a couple of weeks.
I noticed that she was getting intense and painful stim impulses, and told her when we were alone to do certain movements to relieve herself of the stress of trying to act "normal" around friends and family.
I had her bite a rolled up t-shirt, roll her hands around at the wrists, do the same with her ankles, while squeezing rolled up socks, and stretching her legs.
Within a few minutes she told me she immediately felt better, and later commented it was the first time she felt I had truly empathized with her. I told her that the pressure she was feeling in the back of her skull when she wasn't doing those motions is the same reason I pick my nails, curl my feet around the legs of my chair, wrap my arms around my waist when I read, sit and hold my bokken while talking (the small muscle movements required to keep a bokken motionless are fantastic for cutting down the stim urges), pop my knuckles, wring my fingers, pick scabs, my lips, etc, and also why I punch my legs when I get extremely frustrated.
There's a faucet inside of my brain, usually it just drips, so I have to empty the pan it's dripping in by dipping a towel in it and wringing it out. Sometimes when I get extremely agitated it gets turned on full force and I have to dump the bucket over to channel it all out.
She understood that, because she described the feeling of going off abilify as akin to drowning in a flood of noise in her head, but didn't realize she could swim to make it feel better.
I'm glad to see I'm not the only one with the stim item type of impulse.
A certain object or type of object that calms the urges.
I like to sit and rub smooth stones and metal with my thumb, roll quarters around in my fingers, wedge pennies between my thumb and middle finger, rotate my palm under and outwards, then snap so the coin goes straight up and catch it, then repeat endlessly. Juggling any appropriately sized/shaped objects (kittens were quite amusing to my mother when I did that once for a laugh), but mostly I find holding a stick centers me.
It lets me focus on it, the act of keeping it steady, moving it about smoothly, rapidly, exerting control over something which isn't a part of my body, yet behaves as one, and the calluses are satisfying to pick at as well!
Oh! I forgot that I make farting noises with my hands, I used to do it with bubbles of air between my cheek/lips and gums, now I either armpit fart or do them with my hands if given the opportunity. Incredibly satisfying, I actually have a slightly larger muscle on my left shoulder, and more defined bicep on my right arm from doing it for years.