This is odd, I wonder if anyone else has had a similar experience.
Every winter I get a bad flu, sometimes twice. In the winter of 2019-2020, a month or so before reports of Covid began, I had a nasty ten-day bout, went to the doctor and got antibiotics (flu is a virus but they still help), got somewhat better but then it came back for another week. It was three miserable weeks. A month or so into the Rona, I was at the main specialty pharmacy in downtown La Paz, Mexico (this is where you have to go for certain medicines). I'd been watching the Johns Hopkins coronavirus map, and thought to myself in the pharmacy, "If that virus has hit little towns in North Dakota with a hundred people, surely it's here in this pharmacy."
Sure enough, two days later I started with a runny nose, then coughing. My bones were starting to ache and I thought for sure I was in for a bad flu. I went to bed and woke up at 3 AM with severe chills, sweating and shaking. I got back to sleep after a while and...
...woke up feeling fabulous, noticeably better than usual. It was like my immune system kicked into high gear or something. An eight-hour flu!
And this winter I didn't get sick at all, no flu for the first time in probably ten years. My conclusion: I think I had the Rona, and I'm very glad I did.