Second shingles shot was the worst reaction I've ever had. Whole upper arm really hurt. It was hard to find a comfortable position to sleep. Lasted a few days. But having had shingles in my 20s, it was worth it.
Had the Moderna booster this morning. Nothing much different yet. Arm is a little sore. I had more of a reaction to Moderna #2 but was all over in 36 hours. Mostly slept it off.