>>2
Ever seen Fight Club? ;)

More seriously, I don't think this is really abnormal, so I wouldn't worry too much about it. I also kind of have many voices in me, like when I'm about to do something stupid, one "inner voice" is telling me to not do it, and another may be encouraging me. But I don't notice these as seperate voices, it's just something in the back of my mind. You might just be more sensible to this.