Yeah just because your young and may have high blood pressure
make sure you get it checked. I had mine checked out because it was high and they said everything was fine (at the time I was 19 5'0 100lbs) then went to the SAME doctor different office and they did all sorts of tests because they knew that something was very wrong...
to make a long story short. 6 medications 4 doctors later I had open heart surgery at the age of 21. Due to a coarctation of the aorta
(your aorta is normally the size of a quarter mine was the size of a tip of a pen.) They told me that they weren't sure how i was still alive, I pretty much had no blood flow to my legs.
Just make sure if you have a feeling about something to go with your feeling. Even if the doctors tell you something else. ALWAYS get a second opinion