I haven't had it but my wife and son have because of their jobs. Both really no reaction from the first shot other than maybe a little arm soreness.
Son on second shot no arm soreness, a little tired and headache - he's 18
My wife second shot woke up next day with slight fever and was very tired so slept much of the day.
Son on second shot no arm soreness, a little tired and headache - he's 18
My wife second shot woke up next day with slight fever and was very tired so slept much of the day.