Hello! Welcome and thank you for asking on HCM! I passed carefully through your question and would explain that your right leg symptoms do not seem to be related to heart failure, unless your feet are swollen. Only in case of swollen feet, the discomfort could be related to heart failure (considering the fact that it leads to increase fluid retention). If the problem persists, I recommend consulting with your attending physician and performing some tests: - a Doppler ultrasound of the leg vessels to exclude possible peripheral arteriopathy or chronic venous insufficiency - complete blood count, PCR, ESR for inflammation. Hope you will find this answer helpful! Kind regards, Dr. Iliri