I think it's the Abilify. I've only been on it for a few weeks, but i notice a drop in blood pressure about an hour after I take it. My arms and legs feel very heavy and I get dizzy and off balance if I stand up too fast. I've been on Lamictal for 10 weeks without any probs except for hypomania and tingling sensations on my skin as of late. But I got as high as 10mg on Abilify and the blurred vision and heavy limbs caused the psych doc to reduce it back to 5mg and I'm going off of it completely in a couple of days. Going on Risperidone instead.

But you need to talk to the p-doc if your son can't do it for himself. This is a dangerous situation, obviously both in the short and long term. There isn't always a decent place to fall when this happens, like a carpet or couch versus the street.

I hope you find some answers soon.