I am 62, in excellent health. I walk for exercise 4 days a week, approx. 5 miles. I work on my feet as a critical care nurse. I ve never had leg pain or anything like this. A week ago, I started having pain between my shin and my ankle, anterior, lateral. There is now some swelling and redness. It is very painful when I walk, but also painful during the night when I am lying in bed.