Thanks for the extra information. Sounds then like in deed the issue us your left side and the right is just trying to absorb the load. Perhaps see if you can get a good gait video wearing shorts to really see what's going. Also film at a normal walking speed i.e. don't slow it down for the video as the gait will change at different speeds. You might find an exercise regime like Gyrotonic could be useful to balance your hips and lumbar spine to facilitate as normal a gait as is possible.

regards

PB