My issue is the lack of transfer of oxygen into my blood. I was diagnosed with emphysema 10 years ago with no change since. I have never had a single symptom of emphysema and still don’t other than a low Spo2 of 91 average. 82 climbing stairs. 78 at 30k ft altitude. 4 specialist say I do not have COPD and one says I absolutely do have COPD. I have tried a dozen bronchial sprays and nebulizers with no help.
Steroid do help but the side affects are not worth it.