I was diagnosed with borderline hypertension 3 years ago. Now, my BP has returned to completely normal levels. I never noticed any symptoms anyway. But it just seems weird to me that 2 years ago, it was nothing for me to do a reading and get 147/92 and now I can get 118/68 even if I am pissed off angry at everything and fresh inside from running outdoors. High blood pressure does run in my family, but I am in shape, 5'11 and 135 lbs. Plus, I eat a very healthy diet…I haven't changed anything much in these 3 years. Why did I have it then as a 23 year old and it has slowly went away? What causes this to occur? My doctor offers no real explanation.