Dizziness
In the advanced case of heart diseases due to the plaque formation in the walls of the arteries, the patient suffers from a medical emergency which is a heart attack. During a heart attack, the patient feels light-headed and dizzy. The patient loses control in a few minutes and needs immediate medical attention in a hospital setting. If the patient does not receive the required medical assistance, then there is a chance of irreversible heart damage and even death of the patient.