Sometimes it feels like there's a whole other consciousness loitering around in my mind. I only really know it's there because it keeps whispering at me using MY OWN MOUTH. Sometimes it's positive. "It's a good day to be The Dan" or "You Smart!".
Sometimes it tells me to "Kill yourself!" which sounds pretty horrible and that's exactly my response to it. I don't trust the whispering one iota. Weird little id.
I assume everyone has this.