I did a search and found some posts on knee pain but I am not sure mine is the same. My knees have always been tender when I kneel down on them on hard surfaces. I have to use a cushioned pad when gardening. Now its the outside part of my knee that burns when I kneel down. It also feels puffy to the left of my left kneecap. My left one is worse but both hurt. I do aerobics that make the knee bend but we do not use steps. I also have Plantar Facisitis (SP?). Does anyone think its related or did I tear something?