I had severe chest pain and advised to rush to hospital as either I already had a heart attack or in process of having it. The cardiac enzymes were negative however, the EKG was abnormal, later echo cardio test confirmed there was a sepal infarct. Six months later I had the chest pain again and was admitted in emergency where later I had to go through catheterization and was told that I had 50% plaque in one of the artery. Does this mean that six months ago I had a heart attack?