I am 66 and in excellent general health, walk 3 miles every day. I do home monitoring of my blood pressure and find that my blood pressure varies from 150/95 to 90/60. Often within only 30 minutes. I am taking Monopril 40mg daily. I am on the thin side. My stress test is normal as well as an echo. I keep my salt intake to about 1500 mg daily. My Dr. is reluctant to add another drug as I had severe reactions to beta blocker, alpha blocker and HCLTHZ. I guess this is sufficient medication for my hypertension?? Thanks for your opinion.