Both Pfizer shots completed here. Absolutely zero side effects either time, not even a sore arm.
GF got the Moderna series, and felt pretty rugged for 24 hours after the second one.
First Moderna, no issues. Second Moderna, felt a little off when I woke up the next day progressing to a low grade headache, body aches and pains and extreme fatigue. Twelve hours of sleep that night and back to regular the next day.