Update: Saw the doc first thing this morning. Diagnosis was "Left knee patellofemoral pain". Layman's terms, left knee hurts. Probably arthritic cause. I did se the x-rays, and could see a little spur, not as obvious as the spur I could see in the pics taken when I had orthoscopic surgury done 8 years ago on the same knee. Surgery, injections, and/or therapy, was not recomended, but all were left open as a possibility to discuss. No follow up scheduled, but was left up to me as "as needed". I was given a perscription for a brace, and did get measured for one. Get this: $700 for the brace!

Didn't know they could cost that much! Thankful for insurance! No work restrictions, but suggested a couple of things.
First, a change in the kinds of physical activities. Stairs being the first. I DO run alot of stairs at work. Still waiting for a less abuseful job to get posted.
Second, and this is what is interesting, had not thought of it, and as a matter of coincidence, there has been a couple of threads on the subject for unrelated reasons. Smoking: Disclaimer: I am not a doc, not a reasercher, not in any way an expert, but do read and understand enough to hopefully weed out at least some of myth from truth. Smoking causes a restriction of blood flow. Blood flow to the least of needing boby parts like cartilage and bones. Cartilage has a limited number of nerve receptors, bone has LOTS. Lose blood flow to cartilage, and it helps it to erode, and then the bones, which have a lot of nerve receptors, will hurt.
Drinking, especially in excess hurts the body in the same way also.
This is just what the result of my appointment today resulted in. Unforutanely I could not get my knee to POP when in the Ortho's exam room, so he did not get a complete appreciation of that. I do have the brace coming in in 7-10 days, then for the fitting.
Just thought I'd let yous guys know. Any other suggestions would be appreciated.
Matt