I have chondromalacia. I had knee pain on and off for like 5 years but ignored it. Almost 2 years ago I got up from my desk and tried to walk around the corner and fell, my knee literally gave out.
The pain was incredible and I called my doctor, who saw me imediatley took x-rays and had me see a sports medicine doctor. Within 2 days I was in PT, and diagnosed and blown away by my diagnosis...