Update on Moderna 2nd shot. I am a 64 year old woman with a pretty good immune system. First shot just was a little sore first day, slight headache that Tylanol took care of and sore arm the 2nd day. Second shot on Tuesday the 20th at 10:45 am. Took 2 Tylanol as soon as I got home and moved my arm around a lot. By around 7 Tuesday night was really tired and arm had already started getting sore. By 3 am Wens. morning was very miserable so got up. By around 6 was thinking I might be dead. My entire body hurt, both bones and muscles, I had the worse headache I've had in my entire life, I had diarrhea, was having horrible chills. By around 9 am I was also throwing up. Took Tylanol and laid in bed, might even started crying at one point. By around 2 pm most of the chills had stopped, the body pain was down to just bones and a heating pad helped, I switched to Aleve. I was able to eat some toast for breakfast (which came up) and a grilled cheese for lunch around 1 which stayed down. I napped around 2 for about 1/2 hour and again around 3 for about 1/2 hour. By about 4 I was thinking I might live, just some body ache, the arm was sore and the headache had dulled down to a regular headache. Slept through the night and today I'm tired, slight headache and body ache (which might just be old bones)not very hungry and my arm is slightly sore. I told hubby (who gets his 2nd shot next week) I'm not sure I'd do it again if I knew what I was going to go through. I've never been in so much pain in my life and I gave birth to a 9 lb. child. My reaction was very odd because normally if I get sick I always get very mild cases, example: I had shingles a few years ago and it was just a rash under the skin high up on one thigh. It hurt for a day but over the counter topical rub and Aleve worked fine. Hubby thinks it's because I have a very active immune system that was fighting the vaccine pretty hard but who knows. After his first shot he was tired and just had slight pain in the arm the second day.