Hi, I've been having breathing problems, chest pain for over a month now. All of my symptoms started on February 23, 2019 after I was running and overexerted myself pretty badly. For weeks my doctor was giving me anxiety as the cause, until finally I bothered him enough that he ordered a stress test. When they did the stress test they found "possible pericarditis" and I was started on colchicine and ibuprofen. However, in the blood test they did not find any inflammatory markers. I've gotten worse since. I have shortness of breath all the time and rapid breathing attacks more often. My heart also has had periods of fast beating out of nowhere, which took me to the emergency room last Tuesday, where they did a CT scan. On the CT Scan they found no pericardial effusion, but they did find bibasilar subsegmental atelectasis. This apparently is partial collapse of lungs, which appears to match my symptoms exactly. However, despite this diagnosis, my doctor does not think the atelectasis has anything to do with my breathing problems or chest pain. He hasn't even ordered a pulmonary referral to check. I have since gone to another doctor who did think I should see a pulmonary specialist, so I found one who will take me next week. I'll probably have to go to another ER soon as well. Has anyone gone through a CT scan where they found this atelectasis?