My head is exploding, again...

I suffer from exploding head syndrome. Yes, there really is such an animal. And, it is rare, so lucky me. Obviously, my head is still hanging in there, right on top of my shoulders, so it is not really exploded (well, not yet, there's still finals this semester). What happens is this really, really loud noise wakes me up, usually right after I have fallen asleep for the first time. The noise is always inside my head, which is a good thing, because it would be catastrophic if real, it is that loud. And it always scares the you-know-what out of me. I was sooooo happy to know there is actually a documented syndrome, that other people (and it is mostly women over 50, like me) have experienced this phenomenon. I am not nuts here. Well, not in this particular area, anyway.