I'll be interested to hear how some of you go with switching to pfizer for the 2nd. My mum (69yo) had a flu-like reaction to the first AZ. I'd wanted to be with her, but they had a cancellation so she went and got it done without telling me. First night she almost called an ambulance she felt so sick, roasting temp, aches, she already has high BP and a heart issue, so all that was going bananas. Knocked her out for 3 days and has taken her a couple of weeks to start to feel normal.
She is allergic to the flu vaccine and a few other things (eg penicillin, a certain type of local anaesthetic) so it's sort of not surprising she had a big reaction. But we're quite worried about the 2nd shot.
Her GP has just said she should have someone stay with her overnight after she has it. Doesn't really seem like enough of a precaution given how crook she was.