question: Merry Christmas!! I am a 76-year old female and my blood pressure reading is 104 over 58. I have a blood pressure monitor at home, which I have used three times in the last 20 minutes, showing readings of 104 over 58, 102 over 57 and 104 over 58. I feel terrific, am not overweight or tired, have plenty of energy, so why are my readings so low, please? Should I be concerned?