While youre thoughts are "normal" for one with a mental disorder, they can be quite disturbing. Have you told your doctor about these thoughts. From what i recall of being on lithium, it is just for balancing mood, and really doesnt address the voices or thoughts. is there a reason your doctor didnt put you on an antipsychotic as well? If these thoughts begin to scare you, it would be a wise choice to contact pdoc about reviewing and adjusting your meds.