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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 Hurts When Breathing. A hurting chest when breathing may arise from a mild case of abdominal gas or something as severe as a heart disease. If the condition is becoming frequent with time, then a medical visit is imperative. Chest pain may be an emergency which may require prompt medical attention as it may be related to heart attacks.