My Blood Pressure Is A Litte High Never Been On

My blood pressure is a litte high never been on Blood pressure pills explain to my Dr its high anytime I come into the office because I get anxious and had severe back pain as well and I have not been able to work out because of it so she automatically prescribe losartan Potassium 50MG isn't that too high to start a patient out with who has never taken BP medication before and I would like to try to get it down naturally by exercising, eating right it was 143/83 at first it was 163/104 and it went down to 143/83