I had a coworker who got really sick around the same time. He had the PCR test done and it came back negative. There was definitely a bad flu going around at the same time as covid was popping up in the US.
Same happened to me, was in public a lot that February, got a terrible flu that laid me up. Got tested twice (two different antibodies tests) a few months later and both negative.
Just a bad coincidence but I suppose I could count myself lucky.
I could see that. I got absolutely wrecked around the end of February, in part because I got badly chilled one night and allowed it to persist (not wanting to go make a fire in the woodstove when it was already nighttime). I ran a high fever for days and was totally wiped out, and have always wondered if it was COVID.
Ended up just getting vaccinated, now I'll never know. For what it's worth, the second Moderna dose clobbered me like it was supposed to, so maybe it was busy making antibodies and I didn't actually get any immunity from February 2020…
Just a bad coincidence but I suppose I could count myself lucky.