Hello. Thank you for asking on HCM. I understand your concern. Now, the therapy you described you are taking, is crucial in stopping the progression of congestive heart failure and further remodeling of heart chambers. A normal heart pumps 55-70% of its content during one systole. A damaged heart, whatever is the cause, that is pumping 10-15% of its content, means that contains 85-90% of the content after its contraction. This is acconpanied with high pressures throughout the body. Any factor that helps in raising this pressure, can decompensate your condition and put you in dangerous symptoms, such as salt intake, moderate to vigorous physical activity. Another thing is that a dilated cardiomyopathy (enlarged heart) is prone to dangerous, potentially life-threatening, arrhythmias. At this stage, no matter the life expectancy, I would recommend you to discuss with your regular physician/cardiologist about the possibility of implanting an implantable cardioverter-defibrillator (ICD) to prevent these arrhythmias. I hope I was helpful. Take care.