Headaches, Nausea, Vomiting. Have Had Many Miscarriages. Having Low Blood Pressure, Discharge From Nipples, Menstruation Stopped. Pituitary Problem?

I have some concerns and would like to know if my suspicions may be right or if I may have something else going on with me my symptoms started quite a few years ago about 5 to be exact it wasn't anything that I worried about until recently within the last year or so I started out having headaches that were so horrific I would be nauseated or vomit then excessive body hair localized to the face stomach and breast mostly on my face then weakness I visited my obgyn and had some pcos testing which was pretty normal I have had 7 pregnancies 5 of those ended in miscarriage the other 2 were full term but were almost miscarried as well a reason was never discovered other than the fetus detaching from my uterus I have had low Blood pressure for as long as I can remember just within the last couple years I have been getting even worse head aches discharge from my nipples my menstration has stopped I have not had in over a year I have nasal drainage that can be severe at times constipation I cannot get too hot or I am immediately sick I sweat constantly my vision is progressively getting worse just in the last 6-8 mons I cannot even read a drive through menu now I have recently done some research on my symptoms and everything I'm looking at comes back to a pituitary tumor and I also worry because when I do get these headaches it starts right in back of my head at the base of my skull kinda where my spine meets my head I also about 6 years ago suffered from an orbital fracture in which I was associating some of my symptoms but with everything together it comes back to pituitary problem is this your opinion as well or maybe I am just paranoid I also didn't mention that I refuse to go to a doctor unless I know something is wrong so I am looking for professional advice to see if this is something serious to worry about.