You saw a neurologist who only performs EMG studies. Now you need an appointment with a neurologist who will do blood work to search for an underlying cause. You should have your ANA autoantibody titer checked and also Sjögren’s B autoantibodies checked. Both of those were elevated for me, which is similar to long-Covid. However, I never had Covid. I also do not have Sjögren’s. There are similarities between adverse reactions to the vaccines and long-Covid.