Try taking the Abilify with a little snack or some milk to try to reduce the nausea, at least until you are on the 20mg for a few days-week before trying to take it on an empty stomach again. Sometimes if you are still nauseous eating/drinking something with more calories (I know you don't want to hear that) may help. You may not need to do that anymore once your body gets used to the medication.

As long as you are taking Abilify at night, I don't think you will be able to tell with certainty if it is activating or not until the Geodon withdrawl is over. The taper, if you can call it that, has been very fast.

I started Abilify in the hospital and took it in the morning. I know that you are concerned about taking it in the morning because of some of the potential side effects that your pharmacist mentioned, but those are only potential side effects not experienced by most people, and since the med stays in your body, some of them could occur at any time of day regardless of when you take it...

Since insomnia is such a big concern, I would ask your pdoc about taking it in the morning vs. at night, especially since if it is activating you could end up taking more Seroquel than you would need otherwise.