If you're experiencing crushing chest pain with or without pain in your left arm, are short of breath, or have a sense of impending doom, you may be having a heart attack.

如果你遇到伴有左手臂疼痛的强烈胸痛，或仅仅是强烈的胸痛，呼吸短促，或休克，你可能是心脏病发作了。

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Transient left ventricular apical ballooning syndrome should be included in the differential diagnosis of acute chest pain.

暂时性左心室心尖气球变形症候群应该列入急性胸痛的鉴别诊断。

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If you have acute pericarditis, the most common symptom is sharp, stabbing chest pain behind the breastbone or in the left side of your chest.

CNN: Pericarditis