Ok, not sure how I feel about this. I recently went to the doctor for a phyical and was informed that they found an "irregularity" in my heartbeat. It seems that the nerve sending impulses to the right side of my heart is slower than the impules going to the left side. They say this could be caused by a blockage. I'm going to have a stress-test next week while hooked up to the EKG for a more thorough analysis, but this scares the (****) out of me. I've always been overweight, but since I started commuting I've lost 80+ pounds and feel better than I have in years. Any doctors out there who can give me some reassurances that everything can be ok? Since finding this out, my stress level seems to have elevated to around my eyebrows..