Hello! Welcome and thank you for asking on HCM! I carefully passed through your question and would explain that your symptoms don t seem to be related to any cardiac disorders. Coming to this point the main possible causes to consider would be: - musculo-skeletal pain. Is the pain triggered by body movements or respiration? This could indicate possible musculoskeletal pain. - gastro-esophageal reflux or esophageal spasms. This is less probable as your symptoms are not triggered by any specific type of food. - anxiety could mimic all this clinical situation. As your symptoms have been going on for a long period, I would exclude other serious causes. I would recommend making a trial: taking ibuprofen. If your symptoms are relieved by ibuprofen, this would indicate a musculoskeletal pain. Otherwise, if your symptoms are not relieved by ibuprofen, I would recommend trying alprazolam. The relief of your symptoms by alprazolam would indicate anxiety as the main cause of your symptoms. And at last, try an antiacid or PPI (omeprazole, lansoprazole, etc.). The relief of your symptoms by any of these drugs would indicate gastroesophageal reflux or any other similar disorders. Hope you will find this answer helpful! Kind regards, Dr. Iliri