Hello! Welcome and thank you for asking on HCM! Your symptoms are not typical of coronary artery disease, but this disorder can not be excluded. Other possible causes to consider would be: anxiety, gastritis or gastro-esophageal reflux. For this reason, I would recommend consulting with your attending physician and performing some tests: -a chest X ray study - a resting ECG and cardiac ultrasound - cardiac enzymes - complete blood count for anemia - PCR and ESR for inflammation. A cardiac stress test would be needed in order to investigate for coronary artery disease. I would also recommend trying an antiacid or omeprazole. If it helps improve your situation, it would be indicative of gastritis or gastro-esophageal reflux. In such case a fibrogastroscopy would be needed. Hope to have been helpful! Wishing good health, Dr. Iliri