Have you seen a pulmonologist and have you updated your pulmonary function tests? The pulmonary function tests will tell you if you have an obstructive (like COPD) or restrictive (like pulmonary fibrosis) lung issue. Or it may be something else.
I have had two wedge resections. My shortness of breath is mostly due to pulmonary fibrosis. I have prescription oxygen for exertion and sleep. If I bend over I have increased shortness of breath.