I'm 42 and recently took a PFT and the FEV1/FVC was 0.69, non-reversible. I also took a bronchial challenge that may indicate I have some amount of asthma.
The nurse practitioner that I saw at the pulmonologist then said that he was certain I don't have COPD. My FVC was 110%, FEV1 96%, RV 127%, DLCO 90%. But doesn't non-reversible, sub-0.7 always mean COPD?
I have ~10 pack years of cigarettes, and probably close to 10 "joint years" of heavy cannabis consumption (just quit about 3 weeks ago).
I'm going to get a second opinion, but it's going to take a few months to get in. Am I freaking out over nothing?