@indyjo i have recently learned that years on ppi medicine omeprazole had likely been blocking my stomach from breaking down food rich in vitamin b12 and caused me to be mildly deficient. B12 deficiency symptoms include neuropathy alongside many other symptoms including memory loss fatigue confussion ect. I feel somewhat lucky as i was able to present my findings to my GP who agreed to start me on b12 injections. Since then i have definitely noticed some improvements in my neuropathy and my cognitive issues. However i belive the nerve take a long time to regenerate something like 1ml a month. Good luck to you!