I have had a congenital heart disease since I was born. I recently saw my cardiologist and found out that my aortic root is enlarged. I will need surgery in approximately 3-5 years to repair or replace it. I have recently started to feel a very slow throbbing in the area of my heart. I don't want to jump to conclusions but I am not sure if this is serious or not. Should I wait to see if this persists or is this a symptom that should receive immediate attention?