I have known that my left leg is longer than the right, but did not think it was so major of an issue. For the past few days I spent focused on running on a narrow line (run drill thanks to coach Jose) and the pain became pronounced. My left knee bends inward and leg loops around to make up for size difference. Meanwhile the right leg is spending more time on ground stressing the Achilles (an injury I have been dealing with for years). Aside from this causing pain, it is adding unnecessary non forward motion distance costing me time. Solution? I am going to remove the left insole of all my shoes to hopefully fix this.
Pics of what I’m talking about:
pic 2, the source can be my blown disc bulging to one side:
Couple of Athletes 
Now that the hip position has been discovered as the root of your leg position and glute limitations, it’s important to amend this post!