Should I go to the doctor cos of my high blood pressure? ?

Sorry I know it's in the wrong catergary though nobody was answering & I need to know cos I'm kinda worried. I have neurofibromatois so with that tumours grow in my body and I can get "high blood pressure" so they advice you get it checked twice a year. Anyways this last month I have been doing it every day & at least 4 times it has been high, once it was very low. Should I go I the doctor or not? thanks :) Another thing is, when the doctor does my blood pressure check, it's always perfect. But that's only twice a year. Sometimes when I do it, it's fine. My mother who's an ex nurse bought a machine and does it. I sadly have a quack for a doctor - he's not nice at all and I feel he thinks I'm a hypocontriact :(