Tig,
For me, racing negative thoughts are usually related to being in a mixed episode and what helps me is the addition of a antipsychotic or an increase if I am already taking one. I would call your pdoc tomorrow and let them know what is happening. I'll be honest,back in the fall when I was in an episode I needed a break from my thoughts so I would take my klonopin and zone out on the couch, I did this until I could see my dr again and we did another med change. I did at least 2 med changes between Oct and Jan to get stable.