for what its worth, I had AZ as my first shot and it was pretty rough for 36 hours and then I was fine. My second shot of pfizer 8 weeks later barely left a sore spot on my arm. Not sure what if anything it means, but curious what will happen if I get a 3rd.
I had 2 shots of AZ but the same experience. Rough initial period, but the second one was fine. I don't plan to get a third one until they make an updated vaccine for the newer variants like delta. What's the point if it's the old vaccine?