chit chat, this could be schitzophrenia as it does show symptoms from around 15ish but just so that you are not jumping the gun too much, my son had voices a few years ago. it turned out that it was his conscience, but because of the autism he didn't understand it and consequently couldn't explain it properly. It was deemed a positive developmental milestone as it showed that he was learning to determine right from wrong. etc.... so don't panic just yet, it could be something quite simple. In the meantime, if you can't see a doctor earlier, 2 months won't make a difference at this stage.