Hello, I do see that you have the diagnoses of high blood pressure and elevated cholesterol. These do raise my concern level regarding what could be causing your symptoms. Several questions for you that would be helpful are whether or not you have had a recent stress test (walking on a treadmill), and specifically what you were doing when the discomfort started. This would give me some perspective. I do feel it would be beneficial to inform your family doctor about these episodes and if they return I would advise you to go to the ED for an evaluation. This is never a bad idea. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. David Girardi, Internal Medicine Specialist