Since starting Abilify, I've been as jumpy as a flea on a griddle. I am sure it reacts with the caffeine, because I drink an aggregate of at least 12 cups of coffee a day. Some might think that much alone would be enough to give one the jitters, but I've been soaking it up like that for decades, and could still take afternoon naps on the weekends. I can't concentrate, I forget things easily, and I've the attention span of a hyperactive child. I DO like the loss of appetite, as my ponderous girth is becoming a liability. I DO like that I want to go out more and interact with people. But I'm laying off it til I see my doctor 6 days from now, and going back to my old regime. I'd rather be sleepy than jumpy and only sleeping 10 hours in 2 days.