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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.
Pleuritis or costochondritis. Inflammation of the lining of the lungs and chest cavity, known as pleuritis or pleurisy, can cause heartburn-like chest pain. Pleuritis should be suspected if the pain or burning gets worse when you take deep breaths or move around, Dr. Madanick says.