Hi Home girl, and thanks for your post and your question - it's a good one! I am hopeful others in the community will see your inquiry and respond, by sharing their own anecdotal experiences managing this disease (COPD), and mucus.
I also have something to contribute. You may be aware this can be fairly common for some folks with a COPD diagnosis. Although not all types of COPD are characterized by mucus, some actually are. The mucus can be excessive and it also may be thick,affecting one's airways and also their breathing.
I thought you might gain some additional insight, from this article which addresses this very topic: https://copd.net/clinical/mucus-with-copd. I do hope you find this information is helpful for you in a practical way.
I think it's a good idea for you to seek out a specialist. A pulmonologist will be able to give you an objective assessment and together, you can both begin to manage this disease proactively. Please do check back and let us know how this all turns out for you.
Wishing you well,
Leon (site moderator COPD.net)