I am 40 years old, in good shape, eat pretty clean. Last week I had to go to the ER with chest pains. All of the test they did including an EKG, x-ray, blood work turned out good. I went home felt fine for a couple of days, then started to feel really weak and tired, like I was going to faint. I scheduled an appointment with a cardiologist to hopefully find out what is going on. How common is it for someone my age, who works out regularly, no smoking or drugs to have a clogged artery?