I would be more worried about the cycles causing issues with heart enlargement than the GH. When I say "worried", I would freak out about it. I would just pay attention. I get an EKG once a year. I have left ventricular hypertrophy. Everyone here probably does. It isn't always a bad thing. Any athlete on or off gear, that is pushing hard in their sport will have developed the heart, which is a muscle. My enlargement is considered to be an "athletic heart" at this point. The key is to continue to have your heart checked at least once a year, so that you can watch for signs of abnormal growth. It isn't the hypertrophy itself that is the issue. It's the speed at which it changes.