EHS?

And I thought I had heard about every medical condition possible. This gave me a good snort:

Imagine drifting off to sleep only to be roused into a sudden panic by a cataclysmic noise erupting inside your head.

The condition is known as "exploding head syndrome," and people who have been affected by it describe the sound as a violent explosion or an enormous roar "so loud it could kill me." Dr. Joel Saper described the unusual condition last year in a column in the Detroit Free Press.