Okay. Just think. The last
thing I remember was hearing Dean's voice and then this white hot pain place I remember was waking up in South Dakota because of the Yellow-eyed demon. But I didn't have this... whatever it is... computer thing. I really don't think this is round two unless demons started gaining stock in cutting edge technology.
Not that that helps much. Narrow it down. Translocation doesn't just happen. Possession is, probably, out. Thankfully. Which leaves... well, a djinn, a trickster, a demon, a thought form...
... or some really gross pseudo-skin like monster with claws and a pretty nasty tongue that I've never run across before.
I'm gonna have to get back to the whole "where" question.