Did you make the switch? I am new to this site and came across this. Once upon a time ... I had very very very good luck with Risperdal combined with Zoloft. I was able to even come off both for 6 years without issue. That is something you need to discuss with your pdoc though and work on tapering under the pdoc's care.
Anyway, I found that Risperdal was a game changer and 99.9% of my fears subsided.
Best of luck!!!