Hey there, I've had that happen off and on since I was in my late teens, always when I'm depressed and feeling lots of anxiety. It's confusing and annoying and can even be scary, for sure. I'd definitely let your doctor know. I don't think there's anything to be scared about as far as telling him goes. I've told my psychiatrist and therapist both, and they agree that as long as it doesn't cause me too much distress or the voices are not telling me to do bad things, they aren't going to pressure me about taking any antipsychotics(I've stated to them flat out that I don't want to take those.)