The fact that the knee pain is just on the left is an important clue.
Do you have a history of previous broken bones in legs or back? Do you have a history of previous traumatic sprain, strain or dislocation in legs or back? Did you wear correct shoes of braces as a child? Do you know if both your feet are the same size? Do you know if both your legs are the same length? Have you every been acused of scoliosis? A yes answer to any of these questions, can provide some direction to solving a repetivie use injury.
Damien Howell PT, DPT, OCS
www.damienhowellpt.com