My neurological symptoms began within 2 weeks of the first Pfizer vaccine. However, my first EMG at 4 months was "essentially normal". My next EMG at 7 months showed sensory and motor nerve damage, as did two subsequent EMGs. My ANA titer was slightly elevated at 7 months and then increased 4-fold over the next 6 weeks. Thus I appear to have autoimmune-mediated nerve damage triggered by the vaccine. My neurologist agrees. Autoimmune reactions take time to fully develop. Most of the vaccine-injured patients begin to improve around 8 months. I'm substantially better now at 19 months. Most vaccine-injured seem to have small-fiber neuropathy that can't be detected by EMG. I benefited considerably by joining the Neuro V Long-Haulers Facebook group as a source of information. I don't know how I could have navigated this illness without that group.