FixerofUhohs 8 Posts Specializes in School Nursing. Has 48 years experience. Jan 29, 2021 I got my first Moderna vaccine on 1/6/21. My arm was sore, like with the flu shot. No other side effects. OK, maybe I was a little more fatigued than usual, but I've also been super busy. I'm scheduled for my second on the 3rd; heard that that is worse, so I'm not looking forward to it. Oh, and did I mention my first grandbaby was born on 1/7; got the news during a zoom staff meeting and my phone blew up with all of the texts I sent out. So maybe that's why I was fatigued; from all of the excitement!