Hi ,
Welcome to HCM ,
medicine which are you taking at present are all must and you need to take all medicine in time and should be change only on advice of your cardiologist , 
try following tips to prevent acidity and feel good
take medicine after food , 
adopt healthy eating habit , 
avoid spicy , fried , fatty , junk food , 
take fresh fruits regularly , eat more of green leafy vegetables and salads , dry fruits like almond and walnut ,sea food like tuna , salmon fishes , egg white ,
be regular in timing of food intake , 
do not eat heavily , 
take frequent small meals , 
say big NO to any addiction , avoid alcohol intake ,limit tea and coffee intake ,
do regular walking ,
do 
stress relaxing yogas , 
be regular in your follow up with cardiologist . 
take care