I am a very active person running 5 miles daily and cross training too. I eat a low salt and low fat diet. When I was at the pharmacy waiting for my wife I decided to try the free blood pressure machine. It said that my BP was 157/88. I was completely surprised by this. I am now concerned about whether I have hidden health problems that will surface later. Should I be going to the doctor about this?
Your blood pressure changes all through the day so one measurement isn't enough to tell you that much. You will want to measure at least 4 times per day to see what the range is. Only that way will you know whether it is high.
As was said, don't worry about one number. Of course if you are in your 40s or older you should be going for an annual check up. Things can sneak up on you even if you are living healthy. The checkup is the best way to avoid unpleasant surprises.
It doesn't sound as if your blood pressure is actually that high, and you have to factor in the element of 'white coat syndrome.' Even though you weren't having your blood pressure checked at the doctor's, just the fact of having your blood pressure taken is sometimes enough to send it up a few notches. It's a good idea to get your BP checked out by your doctor anyway - he's the one most qualified to tell you if it's within the acceptable range.