I have had shortness/labored breathing on and off for 10 months Docs first diagnosed upper respiratory infection I took meds no avail took lung test good chest x ray chest ct good pulmonologist tested lungs and tested again after bronchodilator 13% diff and when I have shortness/labored breathing I feel pressure on my right side around ribs. I am 30 and can swim a mile under an hour bmi 27 don't know quite what it is

This may be totally off the wall. Is there anything new in your environment that you have been exposed to in the last 10 months? Carpet glue, varnish, paint thinner, microwave popcorn?

I moved from Texas to Kansas. I stayed in Washington state for a month and in Florida for a week still had it in those locations just not as bad or often

New cologne or item of clothing? Has your diet changed with regard to a specific food type? Do you experience the lung changes at random times, or with specific activity?