I signed up just so I could comment here. I checked this thread multiple times (obsessively) in the days ahead of my vaccinations. Thank you all for posting your experiences! It made me feel a lot better and more prepared for what was to come. I have had both Pfizer vaccines now and my side effects were very mild. First shot I had upset stomach for 2 days, horrible heartburn, chills and nausea at 1-2am every night for about 1 week and super sensitive skin. I anticipated my side effects to be worse for the second shot. I was pleasantly surprised when all I got was awful heartburn (which I was prepared for this time) and then chills and nausea around 1am for a week. My arm didn't hurt much but I did massage the injection site and idk if that is why it didn't hurt later but I'm just throwing it out there for anyone who wants to try it. I have asthma, environmental allergies, allergic to wheat and peanuts and also allergic to fire ants. I had no allergic reaction to this vaccine. Thanks again everyone, you all made me feel much more comfortable about getting it.