Hello! Welcome and thank you for asking on HCM! Your symptoms don t seem to be cardiac related (based on your symptoms and performed tests). A prolonged chest pain is not typical of any cardiac disorder. A musculo-skeletal issue or a gastric disorder could be related to this symptomatology. I recommend consulting with your GP for a careful physical examination, a chest x ray study and some blood lab tests (complete blood count, kidney and liver function tests, fasting glucose, blood electrolytes, PCR, sedimentation rate). A fibrogastroscopy may be needed to exclude a possible gastro-esophageal disorder. Meanwhile I would recommend some lifestyle changes, to help you reduce your cholesterol levels: - a low sugar and fat diet - a lot of physical exercise (walking and aerobics) - lose weight. Hope to have been helpful! Best wishes, Dr. Iliri