@blushingmanBut how about me ?
I think i have both of them - blushing and flushing. And i think that was connected because both of them are caused by overractive nerve (too much blood to face in some situations).
So, except classic blushing situations my face also going red when i'm exposed to high or low temperatures, when exercising ..
But i have found story from one man who had ets surgery about two years ago (he also have same problems like me) and he said after ets he can't go red even when he stands on his head - i think this is proof that the blushing and flushing are related.