When I had my intake at the long covid clinic at Mt. Sinai in NYC, I reported that I had a slight tremor in my hands for years (I'm 73) that post covid it had become so pronounced that I could no longer put in my contacts. The PA doing the intake said something along the lines of, "Covid seems to find our body's most vulnerable spots and makes them worse". Like others on this site, I had "marginal" blood pressure for years, that spiked post covid (along with my heart rate). My cardiologist said this is something they're seeing with many long covid patients, prescribing meds to deal with it. I'm not sure why any neurologist would refuse to see a long covid patient, at least to rule out any other issues and/or to help with managing symptoms. I have a neurology appointment later this month, and, while I doubt they can help with my brain fog, I'm hoping they might help with the hand tremors.