Heart attack symptoms can be subtle, especially in women. Recognizing the warning signs early can help save a life. Common symptoms include: Unusual fatigue lasting for days Shortness of breath without physical exertion Nausea or cold sweats Pain in the jaw, neck, or back Chest discomfort that may not feel like classic chest pain Knowing these signs and seeking immediate medical attention can make a critical difference. If you or someone around you experiences these symptoms, don't ignore them—call emergency medical services right away.