Pain locator: D-RF1. What a great tool! Thank you!
Thank you for your opinions, Kneeper and Jockette.
The link to the article is very helpful. My problem spot happens to be on the outer side of the knee. The surgeon looking at the X-Ray didn't find anything wrong and was happy with his work. So am I actually, other than the pain and the bump. The pain/ bump started some time ago and I kept waiting for it to go away. It didn't happen and I finally asked this helpful forum. Now, it finally started to subside somewhat. Maybe because I haven't done as much walking lately.
So, I guess I had overdone it a little. I just have to see how it continues. I was just wondering if anybody else has experienced the same thing.
Most of all, thank you both again for your help.