Hello, Brief answer: No relation is between bounding heart and lipid-lowering drugs, complaint needs to be assessed. Explanation: My opinion is that in your condition, you are doing far well. Exercising regularly without any chest pain or fatigue or even dyspnea that means your cardiac condition is good. Taking antihyperlipidemic drugs is even better to lower the level of cholesterol and to improve morbidity in our patients. But there is no relation with your complaint. Bounding of the heart needs some clarification, if that means some palpitations that is an issue. I suggest my patients the following: • General and local cardiac examination • Electrocardiograph and echocardiogram The information provided by you is not sufficient to provide a good opinion. If someone comes to me with this condition I would ask them about other medical conditions such as diabetes or hypertension also specific details about heart palpitations. Conclusion: I suggest you check with your general physician if any palpitations experienced. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Mahmmad Gamal