If I have COPD would I know it? About 18 years ago when I was smoking the doctor had me blow into some machine. She then said I had COPD.. I am 70 years old. I surf and stand up paddle and have no symptoms. My doctor wanted me to take a test at the hospital. All I said was was my other doc said I had COPD but that was like 18 years ago?

Summarized question: What are the symptoms of COPD?