Sorry to hear about your health conditions, not knowing what you have and not getting the right treatment isnt ideal.

I am not a doctor, just from my experience with asthma.

You need to find md or pulmonologist who will be vested in looking whats going on and help you square away things.

They can do trial meds in addition to what mentioned above such as spiriva, laba and inhaled corticosteroids.

There is also mechalochine challenge test that helps to dx asthma - wasnt my favorite, but thats how mine was dx-ed. My breathing tests were borderline or only satistified 1 out of 2 parameters for asthma based on ATS. You can look up on google American Thoracic Society guidelines on copd, on spirometry, etc - do your homework 🙂

And there is also plane Mucinex over the counter, various strengths that helps to break up the mucus. Good luck !