Thanks Ken, my body weight is lower than usual and my frame is now very petite when I had always been broad and curvier before this. I am now on a strict starch free eating regime which rules out a hell of alot of food. But, the leg thing started a long time ago as did weight loss. I remember looking at my legs and thinking what the hell is going on with my lower legs, ankles and feet about a year ago - even before the sfn pain set in.
Sorry if you have already told me Ken, but were you able to confirm atrophy in your case via a firm diagnosis such as emg or was it your own observations. I don't know what is happening to my legs and bum but something's going on above the sfn.