Thank you very much, everyone. I am amazed at how common this condition is.

I am in my 11th day now with no improvement. Even when I've been incapacitated by back spasms for weeks at a time, there were signs of "light" every few days. Plus, by laying in bed and taking medications, I felt like I was working toward recovery. With no treatment prescribed for this current ailment, I have no idea where it's going or when it's going to let up.

I like the prognosis of three weeks back on the bike, though. That means I'm only ten days away!