Fiser. Got the first shot the first week of January, then got Covid just a week or two later. So while it's supposed to be three weeks between shots, it was more like 5 1/2 weeks in my case. First shot, I had no side effects or even discomfort, but the second one, about 20 hours later got bad sick.What Covid vaccine did you get? My entire Family got the Moderna, two shot's and a booster, and other than my DIL feeling tired for one day, no negative reactions at all.