When I was taking Abilify I started developing tardive dyskinesia which is the whole involuntary shakes and the doctor that treated me for those (because it eventually became painful since I was fighting it) said that i was lucky they caught it early enough because it can become permanent. After taking a heavy dose of Benadryl for about one to two weeks they went away and I'm fine now. Now I'm terrified every time the doc brings up Abilify or the possibility of tardive dyskinesia as a side effect.