Yeah, I realized I hadn't posted.

I saw the doctor yesterday; diagnosis is strained muscles/ligaments in my lower back, no disc issues. Yay. The doctor gave me Naproxin Sodium (Alieve) at a 750 mg time-released dosage- 1 pill every 24 hours. The Advil did a better job; I was actually feeling pretty good yesterday while today was clearly a step back.

I can function; the pain is mostly associated with movements that bend or twist the waist. I can walk, sit, probably ride a bike although I haven't tried yet. When I stand up it takes a few seconds for everything to settle into position and allow for relatively pain free walking. Sitting down is fine. I expect that within a week or so I should be doing better and back on the bike. The doctor didn't put any restrictions on me other than to say I can ride when I can do so without pain.

On the mend, just not as quickly as I would like.