The EKG results in my annual physical (age: 63+ yrs) reported right bundle branch block and left anterior fascicular block. My physician assures me it s benign and has asked that I merely be sensitive ato any symptoms of complete blockage (i.e. feeling fatigue, dizziness/fainting). Otherwise, I am classified as being extraordinary healthy and physically fit. While I have complete confidence in my physician an always defer to his judgment, I m hesitant to accept the EKG findings as benign. Am I being paranoid or sensible and, if the latter, what is the suggested course of action?