Safety Report: Pfizer COVID-19 Vaccine, Rocklin, CA, USA 3 years ago • details 346 I am a 54 yr old male. First dose of Pfizer. Usual soreness in shoulder around site. Mild muscle pain for 2-3 days when raising arm higher than shoulder. Mild to moderate flu like fatigue and aches for 2-3 days. Looking forward to second dose.