Dear Dave, Once the heart is fully checked out with ecg, stress test, and echocardiogram, it truly can be said that most likely it is not pain originating from the heart. Other structures in or near the chest that are famous for causing chest pain are the muscles, the esophagus, and the stomach. An ulcer in the stomach, and reflux of stomach acid into the esophagus can cause extreme chest pain. See a general internist, and or family practice physician to further investigate the chest pain. I hope you find this information useful.
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