Dave Plowman (News) brought next idea :
Being old, most of my mates etc have had it. Straw poll of those says few
have had any reaction at all, and those that did just mild pain in the arm
for a day or so. Really no different from the reaction to a flue jab.

I had no reaction to my first ever flu jab in October.

I had my first Pfizer early Feb, hardly felt the needle, no reaction to
it, no sore arm, just a slight feeling of a bruise in the area if I
felt for it, but no mark.

My partner had the AZ last Thursday, fear of needles so I went with
her. Not much reaction, though a slight headache and a heavy arm. She
was sent home half an hour early on the Friday from the school where
she works.