Fun fact: about 2 months ago most of the people at my work got covid (myself included), and most of them were fully vaccinated. I had 2 shitty days and was 100% after about a week (no treatments, just let my immune system do it's thing), almost everyone else were out of work for twice as long and complained about how they were still feeling like shit. That in and of itself may not be proof that the vaccine causes problems but it definitely destroys their "the vaccine gives me an easier time with it" line. And to this day the only people who question the effectiveness of the vaccine are the one's who (like me) are unvaccinated or who got the vaccine against their best judgements through intimidation and coercion.