Sounds par for the course. I had my 2nd Pfizer on Friday afternoon. Chills and a fever set in by midnight and lasted all day Saturday. It was annoying more than anything else, but Tylenol did the trick to break the fever and keep the aches at bay. Woke up today, Sunday, as good as new.
I had Influenza A the winter before, and I’d say it was identical symptoms, but about 50% less severe (and of course lasted only a day).
I felt absolutely nothing after the first dose. At least now I have my superpowers!
Keep in mind most vaccines will knock a person out for a day; it’s just a sign it’s working correctly. Most of us don’t recall that feeling simply because we had a majority of our vaccines before the age of 6.