Does anyone get small hard chucks, not spit or mucus in the morning?

I was diagnosed with COPD 8 years ago. My first pulmonologist started me on oxygen therapy and Trelegy. He left the area so I was without a doctor for a while and I was able to find another doctor in a bigger city after a couple years. He took me off of everything and has me on Stilolto Respimat inhaler once in the morning. For a while now when I get up morning the I have hard chunks, it’s not spit or mucus that comes up. I also have Sleep Apnea. Wondering if this happens to anyone else.
Regards, Karen