Hello! Thank you for asking on HCM! I read your question carefully and understand your concern. Your past medical history is really concerning, and your symptoms seem to be related to sarcoidosis. But I recommend performing some other tests like : pulmonary function tests, a blood gas analysis, a resting ECG, to examine better your cardiac and pulmonary function. An ambulatory 24 hour ECG monitoring may be needed if suspicions of arrhythmia are raised. Steroids can be a therapeutic test for sarcoidosis (which is a disorder which improves by steroids). But in your case, the dose of steroids may need to be raised, in order to have the wished effects. The cardiac complications, improve too, when sarcoidosis starts responding to the therapy. You should discuss with your attending physician on the above possibilities. Hope to have been helpful! Best wishes, Dr. Iliri