The BP at your age should be in the range of 100- 120 / 70 - 80 . Hence considering this range your BP is slightly high . But then there could be lots of causes for ur high BP
It could be because your were stressed at the time your BP was recorded . Physical or mental stress .
Hence its necessary to know if your BP was intermitently high , which is normal in all individuals .
To differentiate you need to get your BP tested twice a day for atleast 3 days and record it on a sheet of paper .
also very important is you have to sit down and relax for at least 15 - 20 mins before your BP is checked .
If your BP remains consistently high then you will need a thorough evaluation by a physician to find out the exact cause