I see others have already explained that high blood pressure as a rule has no symptoms; that's why it's called the silent killer because people feel so OK they don't know anything is wrong, and don't get treatment. No one here can diagnose you, but it doesn't sound like you have high blood pressure. You could however have a few other things going on. You need to be seen by a physician the tell what has been happening to you....and do it soon. Your parents know about this, right? Tell them first, and then get to a doctor.