I am experiencing discomfort in one leg on the outside of the leg just below the knee. It is when I’m walking, especially turning a corner or negotiating stair steps that the lower part of my leg seems to lose it a little causing a bit of a snap (almost like a little shock) at that point (just below the knee). Is this an iliotibial band problem? If so, how is it treated? If not, any ideas.This is kind of frustrating because the problem seems to come and go without much predictability.