High cholesterol is one of the major controllable risk factors for coronary heart disease, heart attack, and stroke

According to the National Heart, Blood, and Lung Institute, each 1% reduction in cholesterol is equal to a 2% reduction in heart attack risk. Further, the American Heart Association says on their website, "High cholesterol is one of the major controllable risk factors for coronary heart disease, heart attack, and stroke".
The problem most people don't realize is that high cholesterol and heart disease often don't give you any warning signs until something bad, like a heart attack suddenly occurs. People often feel fine up to the actual event. So, don't let yourself fall into a false sense of security about your heart health.
The best thing to do is see your doctor, have your heart health and cholesterol checked, and then embark on a cardio-healthy lifestyle.