Hi jvar2 and thanks for your post. You may be aware that we cannot provide medical advice or diagnostics over the internet (for your own safety), but your inquiry certainly warrants a comment. There are several diseases and/or surgical interventions that can result in scarring of the lung parenchyma (tissue). I'm sure you can understand how it wouldn't be fair or proper to try to hazard a guess as to what the cause is in your situation. I know it can be somewhat nerve wracking to wait to see the physician - but I believe that is the most prudent course for you to take. Please do check back with us and let us know how you're doing.
All the best,
Leon (site moderator)