I had the Pfizer. No reaction to the first shot. Second shot I had a bit of a headache and was a little tired the next day. My arm was slightly sore, but when I raised and lowered it and worked it around gently, it seemed to help work out the soreness. And it wasn’t that bad anyway. It was about the same as my reaction to flu shots every year.My positive is, I'm now eligible to sign up for the Pfizer vaccine. Have any of you guys had that one?