Originally Posted by stapfam
Similar problem to you, that occurs at various times of the year, normally after a great deal of physical inactivity in the office when I am tied to my chair for prolongued periods. Get a doctor to diagnose and hopefully treat, but get it done. Like you, bike riding is not affected, and in fact stretched out on the bike is one of the few comfortable positions for me. Mine is a compressed disc by the way, and does not improve by sitting down or severe bending to do the gardening. Get back on the bike and get some relief, if only for a few hours.
Went to the doc, he says it's probably an aggravated nerve. Put me on steroids, muscle relaxers and hydrocodone. He didn't say not to ride, so I took a couple of days off, and we did 25 miles tonight. I still can't stand or walk, and my leg's numb, but I can actually forget about my back for the time we're on the bike. Then I ice up for a bit when I get done.
I don't drink or do recreational drugs anymore, so it was kinda fun whizzing along at 25 mph with a minor buzz on too

There's really nothing like a quiet bike on a quiet backroad with fresh pavement.
Aaahhhhh.....
Steve