Ok, I am a 25 year old female. I am now considered morbidly obese. When I was about 14/15 I noticed a moveable lump over my left knee cap as well as a small little ball that I could move around. At the time there was very little pain. I went to the doctor they sent me for some therapy and I received a brace which the referred to ad a J-brace. I was over weight but not like now. I did therapy for about a month and that was the extent of any treatment. The lump and ball things never went away. Now for about the pass 3 weeks this knee has been killing me. The pain will radiate through my whole leg. It hurts to straighten it, stand on it, and walk on it. It also gives a lot. The pain really started out of nowhere and is showing no sign of going away. It actually has gotten worse over this week and I am now walking with a limp. Any ideas? I just moved to this area and have not got to switch doctors yet but I am working on it.