Hello @silvern12, I have not scheduled my COVID booster shot yet but plan to get one later this month or next month. I have small fiber peripheral neuropathy and have had both Pfizer shots with only the normal side effects that most have had. For me the worse being the extreme fatigue the second day after the 2nd shot. Here is some information from Mayo Clinic on the booster that you may find helpful:

Are COVID-19 vaccine boosters or extra shots recommended?: https://www.mayoclinic.org/coronavirus-covid-19/vaccine-boosters