I had my covid booster on Tuesday Pfizer and since Tuesday night I've had a very sore armpit feels as if it's bruised, now I also got the same reaction from the flu vaccine in October..very strange as I get the flu vaccine every year and I've never had a sore armpit before and had no problems with the first two Pfizer vaccines earlier in the year.
Anyone else get this , no one I know has had the sore armpit.