This character suffers from acoronary artery disease and/orcongenital heart defect.

Coronary artery disease, also called coronary heart disease, or simply heart disease, involves the reduction of blood flow to the heart muscle due to build-up of plaque (atherosclerosis) in the arteries of the heart. It is the most common of the cardiovascular diseases.

A congenital heart defect, also known as a congenital heart anomaly and congenital heart disease, is a defect in the structure of the heart or great vessels that is present at birth