I have developed a ‘tick’ in my left hand. I hold my hand with my pointer finger out and the rest of my hand closed, like I’m making a gun with my hand. I can’t help it, my pointer finger is always extended no matter what I’m doing.
I also do these little quick shrugs of my shoulders.
I think it’s because of the medication in my case.
I hope your twitching thumb ends soon. It must be really annoying.
Another thing: my thumb twitching improved after taking vitamin D. I see on the internet that thumb twitching etc, can be caused by low vitamin D. Might just be a coincidence, but I thought I’d mention it.
I get the same at times, especially when I’m on 30mg of Abilify. I’m currently on 25mg and I experience less twitching. It comes and goes. I sometimes get ticks on my chin or cheeks. Sometimes I get uncontrollable muscle movement in my upperlegs or back. It always gives me a scare when it happens. My psychiatrist once prescribed Disipal for me but I never took it.
I’m twitching, shaking, grimacing. My med provider thought that stuff was of concern, so she sent me to a neurologist. He said don’t worry, everything is Okay.