2nd Degree Heart Block and exercise

I have been diagnosed with Morbitz type one, second degree heart block (Wenckebach). In addition to the dropped beats, I also have a slow heart rate (Bradycardia), but no severe symptoms (e.g. syncope). I have had a stress test, EKG, halter monitor and echocardiogram. After all these tests, the best information I got from my doctors is "you're fine." I was given no reason for the heart block. Just a pat on the back and shown the door.

I should note that my symptoms only become a problem during periods of increased cardio health. That is, in the spring and summer when I am more active (biking), my heart experiences heart block at rest. It gets to the point that I stop exercising to get the symptoms to go away. This is a huge problem. I'm supposed to exercise to increase heart health, but doing so seems to make my heart less effective.

What should I do? I don't want to be one of those people that constantly runs up his medical premiums by repeatedly going to the doctor for reasons of anxiety, but I don't feel I have all the answers. I have had this problem since I was a little kid, and want to know why. Most importantly, I want some assurance that it won't progressively get worse, with me dropping dead because of some "new development" in my heart's disease. This is all scary stuff...

[Barbmag]

If it were me, I would prob get a second op and also ask all of these excellent questions of the doctor. I usually make notes to take with me so that I remember everything that I want to ask and ask I do!!! I do not leave the office until I understand what the doctor is telling me.
For me, my cardiologist has never been able to tell me why I have an electrical prob with my heart. I guess there are some things that even they don't have answers to which is v frustrating for me. I try to learn all that I can tho, online, on this forum and yes, from my doctors!! I am paying them to spend time with me so I do not feel bad at all when I ask a lot of questions!
Good luck!