I suspect if you lost taste and smell you likely had Covid. Good news on that is that you are likely one of the less susceptible which bodes well going forward however, remember you can still get it and actively shed virus for 7-10d.
Same here with the flu shot.. I got extremely sick and it's been about 20yrs the last time I got one.. But I'm not going to act like a crazy person and demonize the flu shot and or question the doctors that stand by it.. Same with the covid-19 vacc, look at the numbers last time I checked over 170m p got stab where's the mass deaths.. vacc are best defense & wearing a mask is also a must because of the people that think they're immune from this virus that's killed over 660,000