Hi. I am 71 yrs old. I had both knees replaced 11 months apart first one in 2016 and second 11 months later. I have had numb feet (both feet) since 1 week after my second one. Nothing helps. PT, 3 tarsal tunnel decompresses, air casts you name it. NOTHING HELPED. One or two podiatrists that I have seen say it’s my gait from new knees. Did anyone else encounter this. Very debilitating and think I’m stuck with this for rest of my life. So in response it could be your gait….