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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.
Depending on its cause, chest pain may be: Sharp; Dull; Burning; Aching; Stabbing; A tight, squeezing, or crushing sensation; Here are some of the more common causes of chest pain. Chest Pain Causes: Heart Problems. Although not the only cause of chest pain, these heart problems are common causes: Coronary Artery Disease, or CAD.