An EKG produces many false positives. A heart rate above 100 would produce an abnormal EKG, but a good doctor would factor in anxiety, etc. as the cause and not a heart problem. All abnormal EKG readings require further clinical tests, relevant symptoms, etc. before any dx. From the information in your post, the probablity is high you do not have any heart disorder...I'm surprised another EKG test just based on a faster than normal heart rate at the time of the test!