Quote (nobrow @ Mar 20 2021 10:48am)
Pfizer first dose less than 24 hours, my shoulder feels terrible. I already had COVID.
If you've already had Covid then it's expected you have stronger responses to the vaccine.
T-Cell mediated responses, which is anything antibody-based including allergies and rashes, requires a previous exposure, so if you get the shot and have never seen Covid you cannot have a response, which is why most people get away with just a sore spot at the injection site but get rekt by the second dose.