Those twitches could well be a side effect/adverse effect from the Abilify. Keep "bothering" your psych about it because it could progress into further difficulty with abnormal movements. Cogentin is one of the medications that can help stop the abnormal twitches. Good luck!
Temporary movement disorders are a common side effect of all antipsychotics including Abilify. They can be treated with a side effect pill within a psychiatrist's clinical discretion. There are a variety of options and it would be worthwhile to ask your psychiatrist to see if one might help.