Hello! Welcome and thank you for asking on HCM! I carefully passed through your question and would explain that it is important peforming a comprehensive differential diagnosis of different causes that may lead to these symptoms: - gastro-esophageal reflux or hiatal hernia - a musculo-skeletal pain, including costochondritis. - a backbone disorderl - coronary artery disease, although the symptoms occurring at rest are not typical of this disorder - anxiety could mimic this clinical scenario I would recommend performing some tests: - a chest X ray study - a resting ECG and cardiac ultrasound to examine your cardiac function and structure - an ambulatory 24-48 hours ECG monitoring to examine your heart rhythm through the day - some blood lab tests (complete blood count, PCR, sedimentation rate) for inflammation A fibrogastroscopy may be necessary if all the above tests result normal, to help rule in/out possible gastro-esophageal reflux. If all the above tests result normal, you should consider anxiety as the main cause of your symptoms. In such case you should consult with a specialist of the field. Hope to have been helpful! Best wishes, Dr. Iliri