I would put her inpatient, the next time she has an episode, take her to phosph, ASAP.
Then have the phosph do a medwash and go from there on what medications they recommend.
She was on TWO SSRIs when some of this happened, which it A LOT for a child. That can cause all sorts of crazy behavior. Wellbutrin is known to cause anxiety and agitation, not a first choice for our types of kids. And Paxil is known to cause inhibition. If she has mood instability than in my opinion she should be on a mood stab.
Abilify is an anti-psychotic, and it can help in mood stab, however, it differs for each person. Abilify made my son over the top crazy, manic..........so you have to trial these medications in the liberty of an environment that is secure, thus inpatient. In addition while inpatient they can get her an EEG, schedule a NeuroPscyh, and other things to try and diagnosis and figure out what is going on.
Sounds scary, I know - but it will be OK. It sounds like she is having severe mood swings. Matt has these. Sometimes, when I ask Matt if he remembered what he said, he says that he doesn't remember, yet he does. He just didn't feel like himself when having them, therefore he felt out of body. He still talks about feeling this way.
by the way, your profile doesn't say how old she is???
Get some intensive medical help asap - hugs.