I feel so badly for your situation. I had various weird nerve problems in my foot after I had tkr last year. Had neurology snd muscle tests, etc. It seemed to be a lot better when I was really active, like going on a 50 mile bike ride. When winter came again, Inwas working out in gym and using a stayionary bike at home. The numbness and problem hardly ever appeared and then just about exactly a year after surgery in Feb I broke a bone in that foot (A ladder broke and I fell off of it). I have had to wear an air boot all of rhe time for past 3 months. I started having the problems all over again and now it feels like the second and third toes are melded together. They are all cold all the time and numb. I am hoping that it is because I have not been using them or moving them much. The doctor said "oh, you had a problem before, right?" And that is all. As if that is a reason not to be concerned or do anything about it. They all think I am crazy.