Hi, I went to the doc about 2 years ago with knee pain and was told it was chondromalacia patellae. I m 24 and female, apparently it s common. Recently my knees have been much worse - sometimes stiff, sometimes extremely sore, worse in cold etc. I ve also noticed a small, pea-sized lump under the skin on my left knee which appears to be bony and attached to the knee cap. Any ideas?