I'm 30 years old in otherwise perfect health with low cholesterol (160) and low blood pressure. After complaining about mild chest pains to my doctor, she recommended an EKG. Other than mild chest discomfort, I had no other symptoms. My EKG test results show RBBB (w/right axis deviation) & LPFB, possible left altrial enlargement (QRSD=131), and a probable early repolarization pattern. A week later I saw cardiologist and he said that he'll run additional tests but he wasn't worried. My cardiologist also insisted that the original EKG was accurate and there was no need to run a second one. I'm scheduled to do a stress test in a few weeks. I have several questions that I received conflicting answers on; 1. Isn't LPFB very rare? Can it be accurately detected by EKG/ECG? 2. What are the implications of the RBBB & LPFB diagnosis? (i.e. long term effects, risk) 3. Is it true that altrial enlargement can be found in physically fit athletes? 4. For the last three years, I've been running and cycling extensively each week, burning around 5,000 calories a week w/an average exercise heart rate around 160bpm. Could these activities have contributed to my condition? Is it safe to continue these activities? 5. Is chest pain a symptom of my condition(s)? My doctor says no by my cardiologist says it's possible. If not, am I likely asymptomatic? 6. I've read that right axis deviation could be an indicator or Wolff-Parkinson-White Syndrome (WFW). Is this correct? 7. How serious is this? My doctor says they'll probably just need to watch the condition. I'm waiting for a final synopsis from my cardiologist but nobody seems too concerned (except my wife). 8. Am I at a higher risk of Sudden Cardiac Death (SCD)? I'd appreciate any interpretations and/or opinions. Thank you in advance!