question: My resting heart rate has been as low as 28 and usually in the 30s. I havent been very active in almost 20 months and been to the cardiologist before. I have bicuspid aortic but they said it was minor and that I'm fine. I suffer from chest pains, shortness of breathe, fatigue, light headiness, and the occasional fainting. Any ideas what might be wrong and why all the test have came back negative?