Hello and thanks for the query in HCM
I have read your mail in detail and wants to help you out. As you are suffering from Hypertension
with water retention, in treatment you need anti hypertensive drug and diuretic
drug. Both the doctor prescribed you the same treatment but the choice of drug for every doctor is different and everyone treat in different manner.
In my personal opinion try to believe in one doctor and follows the advises given by him/her. Doctor shopping does't give any profit to any one. So believe in one doctor and take treatment for your problem.
Hope you will understand.