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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.
Chest pain is one of many symptoms associated with a heart attack. If you are experiencing chest pain accompanied by pain radiating up through your arm and possibly into your neck and lower jaw, you may be having a heart attack and should seek medical attention immediately.ther medical conditions of which chest pain is a symptom include: 1  Aortic Dissection: a tear in the side of the aorta, which causes abrupt severe pain in the chest and back. 2  Pericarditis: an inflammation of the surrounding area of the heart, causing discomfort in the middle of the chest.