Need a bit of reassurance.
Had put it off asking for a vaccine for ages as I am not sociable, live in a small community with very low number of cases. There were loads of younger people who needed it much more. Then when I did ask in August the health center had run out. But this time when I rang thery said I could have a pfizer one on Friday. My partner doesn't think it is a good idea and now my son is worried the vaccine will make me ill as he had a high temperature for days after the mmr.
What should I say to reassure him, as am scared myself now