I had my 2nd Pfizer jab last month.
1st jab. only pain in the arm for 2 days, no swell no other side effects.
2nd jab, (Friday) surprisingly no pain. Next day (Sat)felt tire and sleepy all the time. Body felt warm later in the evening had slight fever. 3rd day (Sun) woke up after a good sleep, Back to normal.
Monday, went back to work.
So I suggest if you are still in the workforce, jab at Friday so weekend can rest. It is better to stay at home rather than go out again to take medical leave.