I am 79 and was finally diagnosed with FMS 25 years ago. 2 years ago I started having similar but somewhat different symptoms than FMS and finally got the diagnosis of Parkinson. A dr put me on vitamin b6 which is supposed to help. I already had neuropathy and b6 was at an acceptable level. In 3 weeks my level was double what the acceptable high should be. The neuropathy got much worse with feet burning, toes foot and ankle cramping and my legs become so weak I could hardly stand up or walk. B6 toxicity is often overlooked. Even the Dr thought you can't take to much. So maybe Parkinson which is common with fibromyalgia. Good luck 👍