hi I've had neuropathic pain for 2 and a half years now and where the pain is especially bad, my right foot, one of my toe knuckles has locked. I have worked on my hands and feet every single day throughout but that has still occurred. I'm 48. So despite regular manipulation it has still become problematic. I have a neurological disorder as well but nothing that would explain the growing stiffness in my feet. So i do think PN is the cause for me. All the best.