Thanks to everyone who's offered tips and advice about my out-of-the-blue case of uber-tinnitus. It's gotten considerably worse and I'm seeking medical assistance to get to the bottom of it; all I know so far is that I don't have any visible ear damage or infection.

I've actually suffered from "normal" tinnitus for many years, so I'm familiar with its symptoms (including its inexplicable comings and goings). What I have now is far, far worse that anything I've ever experienced: it's a skull-shattering wail that easily overpowers outside noise and renders concentration futile. I'm at a total loss.

I'm hoping to see another doctor within the next few days.