I had no symptoms from the first one. Had an issue with blood pressure on the second one but cant say it was from the shot because doc had been trying to get BP under control for a while and just started a new med. Also had a sore arm with the second shot. The booster was no issue except for a very sore arm that lasted about 4 days. We had dinner with the doc a couple of nights after the shot and I accused him of breaking the needle off in my arm
.My wife had sore arm with all 3 but the booster made her slightly ill for a day or so. Nothing major, just said she felt blah.
We both had the Maderna vaccines.