Its upsetting to here of such when someone is enjoying a hobby.
After a few years away from beekeeping, I seem to be less sensitive to stings.
When I first kept bees in the late 1950s I used to swell up and itch for days on end. About 20 yrs ago I got stung about 100 time around the neck, but I got an immediate jab from the doctor and no lasting effects. I now seem to get no reaction, except I had a rouge bee sting me on the lip a couple of weeks ago, It swelled like a parrots beak but no itching or discomfort.
In my case I think the reaction has declined with age, others may be the reverse.
If you are sensitive have some Piriton (or similar) readily available.
Mike