I did the Pfizer series
First dose 12/16/20, nothing but arm soreness the day after.
Second dose 1/6/21, Same arm soreness until about hour 20, then mild chills, mild body aches, mild fever (to 101) which was really weird because I felt "Fine" and thought soreness initially was from my workout. Lasted 10 hours. Woke up this morning and all symptoms gone.
I also felt really reassured there was a good immune response after the second dose, despite the "holy crap, did I finally get the Rona?" feeling hours 20-30.
Told my parents (who also work in my clinic and are a week behind me in vaccination) to plan on taking the day after the second shot off. I had just finished seeing patients when I started feeling my symptoms. I take every positive COVID patient (including Rapid negatives but known exposure and presenting with symptoms) our clinic gets and take all call and do all inpatient trying to keep them from being knowingly exposed.... So that's why I was vaccinated ahead of my parents who just do outpatient clinic with 'low risk' patients for those who have asked on other threads. Hospital made a big deal of making sure the inpatient docs got vaccinated with Pics/video etc.