i can understand your concerns. unfortunately you omitted crucial information that would help me evaluate the situation better. generally speaking we don't get too concerned about low blood pressure in people who have no symptoms. in other words if you're not fainting or experiencing an abnormal heart rhythm your low blood pressure may be nothing to be concerned about. of course if you're taking medication for high blood pressure and your pressures have dropped that low then you need to call your doctor right away. these readings could mean you need your medication dosage adjusted. but assuming you're not taking blood pressure medication you may have nothing to worry about regarding your pressure readings. very physically fit people naturally have a lower blood pressure than people who are sedentary and/or obese. are you very physically fit? if so that "low" blood pressure may be normal for you. dehydration can cause a person's blood pressure to drop a bit. are you drinking plenty of water throughout the day? by the way when are you taking your blood pressure readings? early-morning resting blood pressure can be quite low. your blood pressure generally comes up as you get active during the day. unless a doctor or healthcare provider told you to monitor your pressures on a regular basis you really don't need to. sometimes the information may be within normal limits yet appear alarming. if you are experiencing symptoms like fainting along with your low blood pressure then i recommend you consult a physician. wishing you well!
for the past 6 mths my bp has been 90/58 86/64 and 80/58. i am worried. what can cause your bp to be so low?