I was diagnosed when I had EKG after symptoms of a heart rhythm disorder began appearing.

My heart rhythm disorder was diagnosed initially by my personal physician during my routine health checkup. It was discovered during a stress test. I was scheduled to see a specialist who conducted an echo, Holter, and another stress test. The results of these test led to a heart catheterization to find out if there is a block in the heart and apply stents if necessary to hopefully correct the abnormal heart beat.

I've had intermittent irregular heartbeats and racing heartbeats for many years. I've mentioned it to doctors at various times, and a couple of times an EKG was ordered. Of course, because it's intermittent my EKGs were always normal. This month (Jan 2014) I happened to be in the doctor’s office for something else when I "oh by the way" mentioned it was happening again. My doctor checked with a stethoscope and voila, there it was. He ordered an in-office EKG, and finally after many years it was documented. He prescribed metoprolol 25mg to be taken when symptoms start. I took one for the first time last night, and it seemed to calm down my heart.