Well, then, it's probably RLS, since MRI ruled out spinal problems. And
yes, I have a very poor gait, I limp, and
my feet and legs
hurt so much that it's hard to be "smooth" with my walk. As for the tightness in your lower back, when a person is moving their legs, it pulls the muscles in the back, and if you walk in a way to sort of "protect" your aching calves and feet, it puts abnormal pressure on those back muscles.