Hi, my feet and knee always hurt, especially early in the morning. My feet feel achy and burning even on cold tile floor. my knee is making poping sound when i walk and i feel like it can not bear my weight. i am working full time and can bear it for the 8 hrs but when i get home i just want to sit or lay down, but when i get up, it worse! my blodd sugar is high but my doctor say i am not diabetic, and he think i have heel faciatic but the exercise does not help, it has been 6 months now,