Hello! Welcome on HCM! I understand your concern and would explain that it is important performing a careful differential diagnosis of different causes that may mimic this symptomatology: - Myocardial ischemia. A resting ECG and cardiac enzymes are necessary to be done to exclude this possibility. - Musculo-skeletal pain. Do your symptoms worsen during breathing or body movements? This would indicate possible musculo-skeletal pain. Inflammation tests (PCR, sedimentation rate) should be done. - A lung disorder. A chest X ray study is needed in this clinical situation. - Anxiety could also mimic all this clinical situation. - Gastro-esophageal reflux. Have you tried taking antiacids during these episodes. The pain relief from antiacids could indicate possible GERD or gastritis. You should discuss with your doctor on the above possibilities and tests. If all the above tests result normal, you should consider anxiety as the main cause of this syptomatology. Hope you will find this answer helpful! Kind regards, Dr. Iliri