10 Early Symptoms of Heart Disease You Might Have Overlooked

7. Lightheadedness

If you’re feeling lightheaded, especially alongside chest discomfort or shortness of breath, it could be more than just a case of standing up too fast. According to Dr. Bufalino, it might signal a heart attack, as it could mean your blood pressure is dropping because your heart isn’t pumping as it should. So, if you're feeling off, don’t just chalk it up to dehydration—this is one of those moments when it’s better to get checked out than to risk ignoring a serious sign!