@silvern12 - I have small fiber peripheral neuropathy and have had the Pfizer booster vaccine along with the high dose flu vaccine. My only reaction was a sore arm and I was a little tired but nothing like the second Pfizer vaccine which I was really tired the day after the shot. If it were me, I would probably listen to my allergist along with taking the normal health precautions traveling. Here's some information that may be helpful for making a decision:

-- What you need to know about COVID-19 booster shots: https://newsnetwork.mayoclinic.org/discussion/what-you-need-to-know-about-covid-19-booster-shots/
-- Are COVID-19 vaccine boosters or extra shots recommended?: https://www.mayoclinic.org/coronavirus-covid-19/vaccine-boosters