One red ear

Back in elementary school I had this weird thing where my right ear would all of a sudden turn bright red and become very very hot. From what I can remember it always seemed to happen at night, or at least later in the day. People would always comment on it because my left ear would look completely normal, but my right ear would be bright red. I hadn't thought of this in forever because sometime around Jr. High it stopped doing it. Then all of a sudden last night at work my ear started getting hot again. Not having a mirror to look at I asked my co-worker if my ear was red, and sure enough it was bright red just like when I was younger. This made me think about it because I don't I ever figured out why this happened then, so now I really want to know what is up with me. :P I did a lot of Google searches and so far this happens to a lot of people, but nobody knows what it is. If there is actually anyone reading this, does anyone know anything about this? Or does this happen to anyone else?