First of all, the top number (your systolic BP) is not clinically "high" (unless you're a diabetic), but rather considered "prehypertensive." Once it climbs to 140+, it is then considered high/hypertensive.
That being said, there may be many reasons why it's a little higher than ideal (100-120 is the "normal" range for systolic BP). Diet, genetics, stress, etc.
How old are you? If you're under 30 I'd hardly even give a second thought to it, but keep an eye on your BP to ensure it's not climbing up significantly higher. Even if you're older, I would find it hard to believe that any other doctor would look at your numbers and find the need to treat it clinically. A normal course of action would be to schedule a nurse appointment a week to several weeks from the initial reading, and if it's still up there, or even higher, then you could schedule a follow up visit for your doc to review proper ways to keep your blood pressure at bay without turning to meds.
At 137/60, the most sound advice is probably "it's not technically considered 'high', but it's something you want to keep an eye on." One quick and dirty piece of advice is to cut way back on your sodium intake.
Hope this post helps at least a little.