The lower your blood pressure, the lower your risk for heart attack, stroke, kidney disease, and premature death. As a result, everyone should aim to achieve a blood pressure of less than 140/90 mm Hg. But people with cardiovascular disease or other problems that increase risk should aim even lower, for 135/85 mm Hg or less.
BGH.com
It sounds like you are within the normal range according to health sources.
Personally my blood pressure tends to run lower, around 100/60. I don't usually experience much trouble. I tend to be anemic too and have to take Iron suppliments. My body responds to stress by dropping my blood pressure. When I slack up on taking my iron and have a stressful situation it can drop even more. One time it dropped so low that I passed out in the middle of college final exams. It was around 57/32 when they first checked it. When it drops low for me I almost always get migrane headaches and will suffer all day with it unless I tend meds for it. Maxalt my meds to help my migrane work by raising my blood pressure as much as 10 points each.
Unless you are having any trouble I wouldn't worry. Ask your Dr about it next time you go in. They are actually telling me that anything over 125 over 75 or so is considered pre-hypertention. Check it out.