I smoked for 40 years and now a nonsmoker for 3-1/2. I visited my doctor for my annual physical and for the first time had a spirometry test and a lung  Xray. The only problem I had  encountered  was shortness of breath on stairs. The Chest X-ray was clear but the results from the spirometry showed I was leaving air in my lungs. The rate was 75-80..stage I COPD. He gave me a brochure with info to your website. After using the medication prescribed for 3 months I feel more out of breath than I ever had felt before. Could this be from the medication, Stiolto Respimat? I was also told if I would continue with the medication it could actually slow down the COPD since it was caught early. Any information you have on this subject would be appreciated.