Can’t lie, I felt pretty rough the day after AZ#2, really tired, with a headache. Not helped by the fact that I was up from 5am with 2 kids then on Daddy duty all day. A day in bed would’ve taken all the sting out of it!!
Edited to say - all fine the following day - was a 24hr malaise!
Converse question: those who had no real side effects after AZ#1, other than a sore arm, any worse side effects after AZ#2. Got my second on Saturday.