I had my flu shot a few days ago at the recommendation of my doctor. My upper arm turned red and became swollen sort of like I imagined the old Moderna arm. Nothing big, but it's still irritated and have felt a little worn down. Arm is better but still red. I've never had this happen with the flu shot before and have been curious if something is different enough this year to cause such a reaction. It's always been virtually nothing. I had Covid this spring and have wondered if my immune system has changed.
I may wait until colder weather and closer to the Holidays for my Covid booster. I'm sort of glad I didn't get both at once. I lost a little sleep as it was.