OK I have to ask this like always...how old are your athletic shoes?
Also, which side are you rubbing where you feel the soft object? HOw big does the object feel and does it hur when you rub it? Are you limping?
shoes are old as hell. the bump is on the inside of my knew and its hurts a little bit when i rub it. doesnt feel that big, but when i rub it the outside of my knee stings a little bit