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/