good for you op, and i agree with everyone...you'll never see people more happy to get an injection in all of their lives. i finished my moderna shot in february, and haven't looked back. that this point, everyone in my immediate family has had the vaccine, so just to be able to hang out without worry has been great.
one thing i have heard from everyone vaccinated so far is to how well run the clinics are around here. very efficient and very smooth. mine was done at a county highway dept. i didn't have to get out of my car as we were directed towards a garage. rolled down the window, did the deed, then waited the 15 minutes in a parking lot next to the building. both of my appointment times were at 11:30. one appointment i drove away at 11:47 and the second at 11:48, including the 15 minute wait time.
edit: as far as the reaction...i just had a very sore arm. wildly sore actually, and maybe a bit tired, but the next day after the second shot was business as usual.