hi! I am 33 yrs old and I was diagnosed with high blood pressure when I was 17yrs old. I was also only 93 lbs at the time. I have had every medical test done and they have always came back normal. They call mine "idiopathic" which means ..there is no cause..its just in your genes. I take 2 different medications now..I did take three after I had my kids.. (now 13 and 10ys.) If I gain weight it gets higher..so I just watch it. I don't add any salt to anything and DO NOT TAKE COLD MEDICATIONS! pretty much every "cold" or "sinus" medication will elevate it because of the decongestant in it. I take coricidin HBP..when I get sick..it is specially formulated for people with high blood pressure. CVS also has a knock off and it works just as well. If you ever have any questions let me know:)
hope I helped a little!