Hi. I Am Having Trouble, Controlling My Blood Pressure. Been

Hi. I am having trouble, controlling my blood pressure. Been to drs, about this. I am on 100 mg. Cozaar, 03.mg Clonodine. No salt,sugar diet. B.P fluctuates. Up and down. Also heart rate is very slow, around 40. I am 79 years of age, fairly, good health. Do not drink or smoke, fairly active. Can u please help me. Thank You. Gloria Vincent Gibb