it's kind of a petty argument. She and everyone else that caught it know that it didn't come from her. Probably a private faceCrook page or something on that order.
On another note, wow man I so hope you get straightened out with the long covid... I knew 4 people that died from that stuff. I thank my lucky stars that I didn't catch it when I was out doing work during the lockdown but everyone wore their mask around here and respected one another's space.
hopefully they get your thyroid fixed up and get you back to yourself. Be as well as you can and always listen to your doctors. Never be afraid of a second opinion if you can afford it either.