Oh, no!!! I hope it wasn't too bad. My arm is sore today, but so far, that's all. I've heard the second one can be worse.

@Organist1 My first shot, my arm was dead for 3 days. had a headache and body ache for a few hours after the shot, but those went away quick. The second shot, my arm wasn't nearly as bad, but the headache was worse, the body aches were worse and last longer, and have a chill like I just couldn't get warm. But they lasted only 12 hours. Went home after the shot, sacked out on the couch for 8 hours and was pretty ok from then on. Most of my coworkers reported similar effects, to varied degrees.

@Rignor I think that shows your immune system had a strong response, which actually is good! (Sorry about the dead arm). I think we older people fare better with side effects, but the immune response isn't as good, unfortunately.

Good luck luck tomorrow! Actually, it was just pure luck that I got mine. A friend who is a nurse was keeping watch on things for her friends, and a few appointments just happened to come to her attention.