Hello.
You will get the drum-line here that COPD is "an umbrella disease" covering things like Asthma and Emphysema. But few talk about other lung and Respiratory conditions that don't fit these categories. Even with medicines, many Docs go to the well advertised brands on Tv without digging in for a root cause. It sounds like your Docs fit that category too.

You are doing good by advocating for yourself. Your descriptions here give a lot of clues that need a better-than-rote answer. Here is an article talking about recent changes to the diagnosis and treatment of the overall condition we call COPD:
https://www.medscape.com/viewarticle/985970
Also, Read into the link there about the GOLD Standard and you will see how much of your symptoms are counter to the "traditional" lung damaged ( aka "smoking") patient. Don't hesitate to find replacement doctors before things get out of control and you are hospitalized for intense treatment.
Be well.

I suggest you see a Pulmonologist or Pulmonary Dr. Maybe see another Doctor? To get a referral . Just make sure they’re in your Healthcare network.
Just a suggestion.

I suffer from COPD emphysema and asthma I have been I two comas on life support and I am grade four gold I would certainly change your doctors GOOD zLUCK

There are some days that we just like to forget and believe me breathing is important. Sometimes we just have to wait it out and the worm goes away.