Sounds like what happens when you exhaust your body of fuel and then send it into overtime. Lots of chemicals going around.
Plus George Foreman got his head rattled around a lot. Right?
If he would have quit walking around he would have cooled down faster, Why not just go outside and stand in the breeze---if there was one. Under great stress one develops random thoughts connected to things believed or known which can make it seem as though someone is talking to them.