I have a shorter leg due to medical malpractice during a balloon catheter as a baby. (no joke) I don't have an artery in my right leg, but the body is amazingly adaptable! Instead of my leg being amputated as the docs initially said, some veins took over and wala! It lives! lol
I wore leg braces as a kid and sometimes special shoes. As an adult, I don't; but I should, because I've developed problems as a result of the difference.
I don't have advice beyond see your doctor, or an orthopedist. I have an apt. coming up m'self.
Good luck and feel better soon!!!