There are studies coming out linking the vaccine to neuropathy, with the suggestion that is an immune response, or perhaps a metabolic issue. Some treatments offered are steroids or intravenous gamma globulins. I developed neuropathy after the vaccine (paresthesia within days, and 8 weeks before the burning started) and have recently gotten a confirmed diagnosis of length dependent axonal sensory neuropathy. My Dr is a bit stumped, and we don’t have the testing here in NZ to detect the spike in plasma, but I’ve had a very elevated IgG (antibody test) 3 months after my second jab. Just did another blood test to see if it is still very high - 9 months after last vax and 6 months after Covid itself. If my antibodies are still high, I can only assume (as I have no other co-morbities) that it is some sort of inflammatory response to the spike itself. So, like everyone else experiencing this issue, we wait to see what developers, and in the meantime, try to deal with it best we can. I have yet to find the answer.