I had similar symptoms. Scary persistent cough for something like six months. Finally got chest xrays. Doctor called and left a message - "we found something on

I had similar symptoms. Scary persistent cough for something like six months. Finally got chest xrays. Doctor called and left a message - "we found something on your xrays, give us a call". That was on a Friday, and the office wasn't open till Monday. I spent the weekend mentally preparing my will. When I finally talked to the guy: "General lung irritation, possibly due to postnasal drip, take a sample of this anti-allergy nasal spray". I think I used it once or twice, but mainly it just cleared up all on its own. This was a dozen years ago, long before covid. I guess what I'm saying is: There were a million problems your body could have before covid, most of them not life threatening, and those issues are still around even with this scary disease running rampant.