High blood pressure at 19?

I agree that those public blood pressure may not be the best indicator. One size does not fit all. Believe it or not there is a proper way to take a blood pressure. Sitting for 5 mins, arm at heart level, with proper size cuff. If you are a muscular person or overweight a normal cuff will give a false high reading. If a cuff is too large it will be a false low reading. If you feel fine have it checked if there is a local health fair. Or you could go to the local paramedic/EMT station when they are not busy. If you see'em sitting outside their not busy. Then ask what their policy is and explain your situation, Then tell them you appreciate their professionalism.