Hoping for your quick and strong recovery! I still think I had it, along with a bunch of people, before it was announced. Was knocked flat on my butt for several weeks, the fever, the cough, etc., but, who knows.
As others said, during that time in early to mid January, I'd never had a bout like that with anything. Was still coughing up gunk weeks after and was among those who heard the symptoms, once finally announced as COVID, and thinking, "Yup, that's what I had." Hard to say, of course.
Get well soon!!!!