Heart disease is a general term covering a wide range of illnesses with coronary implications including coronary artery disease, myocardial infarction, arrhythmia, atrial fibrillation and heart valve disease. Because it covers such a range of disease, it is difficult to list all of the possible symptoms here, which include (but aren't limited to) palpitations, shortness of breath, pressure in the chest area, dizziness, syncope, fatigue, disorientation, and more.
Eating healthy certainly helps, but cannot, along, prevent all heart disease, particularly if there is a genetic predisposition involved. For example, my mother has always ate right, exercised, and in general taken very good care of herself; 4 years ago, she had to have a quintuple bypass because high cholesterol runs in her family.
at 6:08 PM on Nov. 5, 2008