As a healthcare professional, I can tell you that while some heart attacks occur suddenly and without warning, it is also possible for individuals to experience symptoms in the hours, days, or even weeks leading up to the event. These symptoms can include recurrent chest pain, often described as a feeling of pressure, tightness, or discomfort in the chest, which is typically brought on by physical exertion and relieved by rest. This type of chest pain is known as angina and can be an early warning sign of a heart attack. Other symptoms may include shortness of breath, nausea, lightheadedness, or pain radiating to the arms, neck, or jaw. It's important to note that a heart attack can cause a cardiac arrest, but it is not the only cause of this life-threatening condition. Anyone experiencing these symptoms should seek medical attention promptly. read more >>

Some heart attacks strike suddenly, but many people have warning signs and symptoms hours, days or weeks in advance. The earliest warning may be recurrent chest pain (angina) that's triggered by exertion and relieved by rest. ... A heart attack can cause cardiac arrest, but it's not the only cause.read more >>