Our expert says:
I can understand your frustration. Chest pain can be caused by a hiatus hernia, a peptic ulcer, esophagus spasm, angina of the heart, lung infection or inflammation, rib or muscle inflammation or infection. Have you had an examination by a gastro enterologist to see if you have erosion of the esophagus or spasm in the esophagus? If not, I think you should ask your GP to refer you to one. They can see this with a gastroscopy ( a flexible tube with a fibre optic camera that they use to look down your throat ) This is not painful at all, it is a bit uncomfortable but most doctors do it under light sedation. It only takes a few minutes to do this.
I think not knowing what is causing this is causing you severe anxiety and this may be the cause of the fast heartbeat.
See also http://www.emedicinehealth.com/chest_pain/article_em.htm for a comprehensive article about chest pain
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