Hello and welcome to MedHelp's forums. I'm glad to hear you are working with your doctor to understand what is happening with your breathing and the cough. Your doctor should meet with you to fully explain your results and that is best place to get your information. Please schedule that appointment. In the mean time, here is an overview of spirometry testing https://www.webmd.com/lung/types-of-lung-function-tests#1. As to the results you've listed here, normal values are dependent on age, gender, race and height. Here is a calculator that you can input your information that is provided by the CDC that may be helpful for you https://www.cdc.gov/niosh/topics/spirometry/refcalculator.html
Once the FEV1 drops below 70 percent of the FVC, the diagnosis of COPD is made.
Please input your values into the calculator and let us know what the outcome of that is.
When is your follow up with your doctor?