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So back to your question: 1  Your chest hurts when you're emotionally sad because your brain processes physical and social pain in the same brain regions (dACC and AI) (the affective aspects of the pain). The fact that both pains overlap means the factors that decrease physical pain also decrease emotional pain.
Having a pain in your chest can be scary. It does not always mean that you are having a heart attack. There can be many other causes, including. Other heart problems, such as angina. Panic attacks. Digestive problems, such as heartburn or esophagus disorders. Sore muscles. Lung diseases, such as pneumonia, pleurisy, or pulmonary embolism.