Hi Just joined. My chest xray in oct 17 stated enlarged heart and bibasal atelectasis. Seen a cardiologist had ecg and echo.Heart is within normal size limit and no probs. Just had mibi tests this week to make sure. going for chest scan next week. My symptoms are rib chest and back pain and breathlessness on exertion. I'm 65 never smoked, haven't drank alcohol at all for 15 years and never drank much before then. I have asthma and D.I.SH. any thoughts ?