Eh I don't see a connection between injecting mRNA to create antibodies for a virus and a nerve/neurological condition, especially if he got it prior to vaccinate.
im not saying it is a huge likelyhood but it “could” happen as BP has already been connected as a possible side effect of the vaccine. If it can trigger it, it can also aggravate it.
Exhibit A.

Bell’s palsy following COVID-19 vaccination
