My mother who is 68 years old is suffereing from High Blood pressure for the past 30 years. The situation has aggreviated after my fahers death due to parkinsons disease. She went thru a lot of trauma and since then it did not come under control. The current reading is 167/84. She is using NEBIMAC+ ERITEL-H in the morning an PRAZOPRESS XL In the night. She is also adiabetic with her fasting serum glucose levelss at 145 Eralier she used NEBIMAC-H that kept thing sunder control. Now we are not getting that drug. Are there any other tests that need to be done for finding the root cause of this problem