The only thing I have to add is that I noticed you said you’re about to go on Medicare. Supplement plans with regular Medicare seem to give people more options than Advantage plans when your care/meds may be changing. There are better sources than here for that subject, but a thought to consider.

I second Scoop’s advice to see a pulmonologist who treats bronchiectasis patients. My first pulmonologist (who I think is a good general one) didn’t mention the bronchiectasis finding on the CT or airway clearance despite telling me the CT looked terrible. He’d changed my appt to a phone follow-up.
Long story, but I went to Mayo and they did bronch, adjusted meds, etc. .
That chest pain is concerning to me. Have you seen a cardiologist, had a stress test or calcium scan or further testing? An EKG only shows changes if you’ve had or about to have a heart attack. Talk to you prime MD for referral. I guess I had more than 1 thing..

It would be a very rare medical person who thinks you’re making it up, btw.