Hi!
I'd never experienced NP before 6 months ago. We had a freak winter storm down here in TX in 02.21. We were asked to lower our thermostats to "save the grid" as many were without electricity for days. While this was going on, I pretty much camped in my bed with all my clothes, 2 pairs of socks, and heavy blankets on me. Afterwards, my feet just wouldn't get warm. Then they started burning. Then I started looking up causes.
I've tried increasing water intake, magnesium, potassium, aspirin, accupuncture, elevating feet, hot baths, Epson salts... pretty much anything I read about, I tried. No relief.
Went to GP.: bood test results all normal. Went to a podiatrist: circulation fine, probably have neuropathy.
Started Gabapentin last week. Cold/burning sensation is still there, but less severe.
Next stop is a chiropractor to get an adjustment in case being in bed for 3 days during the storm just created a pinched nerve of some sort.
Then...
I realized I'd gotten my 2nd Pfizer vaccine about 1 week before the storm. Ding ding ding! Maybe THAT attributed to the new found pain in my feet which is traveling up my legs.
So I've been reading your forum, and while I had no PN prior to the jab, I think I may well have it AFTER the poke.
tldr: I feel your pain and believe that the vaccine could be causing neuropathy.
Have you also checked in with your regular Doctor, or a neurologist? I had some additional inflammation after shot #2, but no further issues. I was caught in a freeze in Houston in 1996 - at work there was no heat. I was diagnosed with MCTD, a genetic disease, triggered by the cold - and other circumstances. However, diagnosing symptoms like these is comparable to finding the source of a roof leak: it doesn't always come from right above. Depend on your doctors and take their advice. For leg pain, I am pretty sure it is fibromyalgia or similar: fluids accumulate between muscles/tendons pressing against nerves. Movement; leg edema massage (toes to torso), cat/cow/child/cobra yoga, clamshell stretches, Hamstring stretches and "pumping" (heel to toe movement while lying down) helps somewhat. Magnesium, B-12, D3 pretty helpful. https://www.foundationforpn.org/2021/01/08/covid-19-vaccine-and-peripheral-neuropathy/