For a few years, I have experienced increasing numbness in my toes and legs, meaning the numbness is creeping upward. Now my shins are numb and for the first time, I have pain. It feels as if someone smacked my shins with a two-by-four. At times. My walking is clumsy and after sitting or driving, I have real difficulty walking. I often favor my right leg. I am afraid I will lose the ability to walk. I am not diabetic, always been healthy. I am 71, widow, three children, weight, 145, retired English teacher. I have recently had blood work, and everything is okay. I can t spell it, but cholesterol is fine. I go to the gym for aerobics, as in Silver Sneakers, when I have the chance. I take my dog for a walk around the lake, one and one third miles, when it is half-way nice outside. Please help.