I am sorry to hear about your symptoms. It sounds like you have been feeling quite ill for some time. It is difficult to provide accurate recommendations without being able to review your CT scan in person, and it is also important to perform a thorough history and physical exam. I encourage you to seek a second opinion
with a pulmonologist
, preferably at an academic medical center. After reviewing your records, they can make recommendations on the most appropriate next steps.
Asbestos exposure can lead to certain characteristic lung findings, which most commonly consist of thickening of the pleura (outer lung lining) along the bottom surfaces of the lungs that rest along your diaphragm. The amount of exposure required differs for everyone, although you are certainly at a young age to exhibit these findings.
Ground glass opacities refer to a specific finding on CT scan that can be due to a number of lung diseases. I cannot speculate as to your diagnosis without seeing the CT scan, and I recommend you again see a pulmonologist. You are at risk for emphysema
due to your smoking, and I strongly encourage you to quit smoking entirely. The lung findings could also be due to a form of interstitial lung disease. Again, you will need to see a pulmonologist to determine the cause.