This is exactly the compression and squeezing of my muscles in both feet that I haven’t been able to get a diagnosis for in over 2 years. Thankfully I don’t have the pains you feel, just the constant feeling that my feet are in a vise, and it’s getting progressively tighter. I have gotten bigger shoes and the suggested orthotics, which change nothing. I very seldom wear shoes, but the feeling never changes. I don’t think it’s neuropathy either, though 2 doctors diagnosed that, and I’ve tried the supposed supplements for it with no effect. A chiropractor said it might be an “entrapped nerve,” but adjustments brought no improvement. A functional doctor from a blood test thinks it is folate drficiency, and I’m taking that, but it’s not helping either. I don’t know where to try next.