Many people dismiss minor aches, sudden fatigue, or shortness of breath as “just part of getting older.”
Yet, these seemingly harmless symptoms could be your heart’s early warning system—signaling trouble days or even weeks before a serious cardiac event occurs. Ignoring them may be life-threatening.

Ischaemic heart disease remains the leading cause of death worldwide. According to the World Health Organization, cardiovascular diseases claimed 8.9 million lives globally in 2019 alone.
Research shows that the body often displays warning signs—known as prodromal symptoms—before a heart attack. Unfortunately, these early indicators are frequently overlooked by both patients and clinicians.
A study published in The National Library of Medicine identifies common prodromal symptoms including chest pain, chest heaviness, burning sensations, palpitations, fatigue, sleep disturbances, shortness of breath, dizziness, anxiety, sudden temperature changes, back pain, and vomiting.
Here are seven key warning signs to watch for:
Fatigue
Constant exhaustion, even after rest, may indicate your heart is struggling to pump enough blood. Narrowed arteries reduce oxygen flow, making simple daily tasks feel exhausting.
Shortness of Breath
Difficulty breathing can occur when the lungs aren’t receiving enough oxygen due to reduced heart function. Shortness of breath combined with fatigue may signal heart failure—a condition in which the heart cannot pump blood efficiently.
Weakness
Sudden, unexplained weakness is a subtle signal from your body. Fatigue paired with general weakness may indicate your heart is under stress.
Dizziness and Cold Sweats
Poor circulation can trigger dizziness and sudden cold sweats. While often overlooked, these symptoms can be early signs of a heart attack or other cardiovascular issues.
Flu-Like Symptoms
Many heart attack survivors report feeling generally unwell—similar to having the flu—before an event occurs. Unexplained malaise should prompt a medical checkup.
Chest Pressure
Tightness, heaviness, or burning sensations in the chest are classic pre-heart attack indicators. Chest pressure that increases over time should never be ignored.
Swollen Feet
Congestive heart failure can cause blood to pool in the lower body, leading to swelling in the legs, ankles, and feet. Persistent edema signals that the heart isn’t pumping effectively.
Videos from experts such as Dr. Travis Stork provide guidance on spotting these warning signs and responding quickly, including demonstrations for recognizing heart attack-related coughs and self-aid techniques.
Conclusion
Heart disease can develop silently, but recognizing early warning signs dramatically increases the chances of survival.
Fatigue, shortness of breath, chest discomfort, unexplained weakness, or swelling should never be dismissed. Paying attention to these subtle symptoms and seeking prompt medical care could make the difference between life and death. When it comes to your heart, no sign is too small to take seriously.