Safety Report: I am reporting no side effects from Pfizer, first shot, Centra Care, 6th Avenue North, St. Cloud, MN, USA 4 years ago • details 2 Comments Comment I have not had Covid before. Received Pfizer, first shot, did not hurt at all!, at Centra Care St. Cloud. Extremely well organized, in and out in 25 minutes. No side effects noticed, other than maybe a little bit of tiredness the next day.