If you don't smoke, don't drink much, are within normal weight guidelines and have blood pressure within normal range, you are probably OK. However, I think you are sufficiently concerned about this that you will feel better if you talk to your MD. An echocardiogram (no radiation) will tell your MD if there is anything going on. And if nothing, maybe another one in 10 years, just to assure you that you are not following in a genetic footprint. If your primary MD dismisses your concern, see a cardiologist for a discussion.