Yes. Years ago my primary doc put me on an inhaler because I was experiencing shortness of breath. She said it could be late onset asthma. I asked for a referral to allergist/asthma specialist. Specialist had me perform a breathing test that I passed. She concluded I had Acid Reflux. She suggested I get an OTC PPI 20 mg and take daily first thing in the morning. To wait 30 minutes before eating anything. It cleared my shortness of breath in one week.