question: I have been told that my CT Scan shows lung scars or nodules that they believe is just scarring, I am very fatigued, light headed and have alot of chest discomfort. What questions or tests should I be asking my physcian? I have had a stress test and PFT awaiting the results would like to make sure I am covering all the possibilities. I am 52 yr old female that was previously diagnosed with COPD.  I am at a loss to know what to do next.