When I hear remanant sounds of something, like a jet passing by, that last for quite awhile. Then I "notice" them like a half an hour later, and they go away, to be replaced by yet another sound from something that drags on in the background for abnormal amounts of time.

When I thought that my tongue was moving around rapidly in my mouth in circles - really weird.

When it seemed as though the veins in my eyes were popping out of my eyes in a V-shape. Really weird as well.