I have BP2 with mixed states, including racing thoughts. Yes, be very careful with anti-depressants. They can send you up too high. I have never heard of hallucinations from bipolar's depressive side alone and Ive had this for decades. Im going to read about that.
I applauded Nammu's mention of antipsychotics because that might stop the hallucinations and voices. I think it might help you to do some reading about schizoaffective disorder because of the hallucinations and voices. We are all our own best advocates because we know ourselves best.