I don't here voices but I have been integrating my "shadow side"--perhaps my shadow side is a bit like the other voice in my head? An example of my shadow side would be thinking that my husband is secretly taking steps to divorce me because of an action that I should be taking at face value. Most of the time I trust him but I sometimes let my fears generate an entire story behind an single action or conversation even though the other 95 percent of his actions are 100 percent trustworthy and loving. I think my "shadow side" thoughts are anxiety--preparing for the worst scenario--even though he has been there for me for more than 32 years! I wonder if conflicting thoughts and voices share similarities?