Oh, I didn't know catastrophic thinking could be part of bipolar. I am at it right now. Everything I do, everything that happens, everything I don't do and every tiny mistake leads me to thinking apocalypsis is knocking at my door.

Getting a call from my landlady leads to me thinking I am going to be thrown out of my flat and ending up homeless. Having a cough due to a cold is long-expected lung cancer. Not studying much right now due to too much work will lead to not passing my exams.

I know I am exaggerating but can't stop. Is that what you mean by catastrophic thinking?