I am a 68 years old female, slender, 5 8 tall and have had two heart attacks. Genetic problem. I also have two stints and take clopidogrel 75 mg and metroprolol tartrate 25 mg; 1/2 tab in AM and 1 full tab in PM. Many times my bp , as it is now, is down as low as 79/46; currently 113/46; heart rate 71. I worry when my diastolic pressure is in the 40 s, as it is now. Is this a problem??