Information about neurological reactions to the Covid vaccines may be found at the Neuro V Long-Haulers Facebook group. I'm not sure this applies in your case. However, it's common among Covid vaccine-injured for the vaccines to exacerbate a pre-existing autoimmune or neurological condition. I had some pre-existing mild painless nerve damage in my feet from an inappropriately prescribed antibiotic. The muscle spasms and eventual peripheral neuropathy began within 2 weeks of the first vaccination. My condition is slowly improving. The improvement began around 8 months, which is typical for these vaccine injuries.