Hi Welcome to HCM ,
placement , activity level will be decided by mainly pumping function of the heart , if your pumping function of heart is good than you can do moderate exercise , and in exercise do aerobic exercise
like brisk walking , swimming , jogging ,
and less of weight lifting ,
also adopt healthy eating habit inform of having more amount of green leafy vegetables and fresh fruits and high fibre diet , avoiding fatty , fried , junk food .
take your medicine regularly and do regular follow up with your doctor ,