Pharmaceutical Confusion...

So after the hospital visit yesterday, today i have had a little time to do some research on the medication the Consultant wants me to take - and all i can say is - I am confused!

The consultant has requested that i take something called Cabergoline.

Upon researching it, it is prescribed for people with raised Prolactin levels - among it's other uses (in Parkinson's disease and Prolactinoma's - or in Layman's terms - technically, a certain kind of Brain Tumour).

My blood tests have shown on several occasions that i have elevated Prolactin levels, the cause is still unknown. I had an MRI done last July, which has been cleared and shows no evidence of this kind of Brain Tumour. However, it is still a concern and the Doctor has prescribed me this medication. After the problems i have suffered in the past with being prescribed medication unnecessarily, i am concerned as i don't know why i would actually be taking the medication - I mean, i know why i have been prescribed it - My Prolactin levels are raised, but i don't know why i should take it when i don't know what is actually causing my Prolactin levels to be high.
There are many negative side effects to taking this medication - So why should i take the risk, when i cannot get so much as an explanation as to why i need to take it?
If they haven't found anything physically with an official diagnosis (other than an abnormal blood test), should i really put my health at further risk by taking medication for an unknown reason, simply to adjust my blood test results? Surely, finding the actual cause is more important that using me as no less than a human Guinea Pig?
These are all questions i continually ask the Doctor's - and they really DON'T like it when you question their Authority, therefore, i can never get a straight answer, which strengthens my belief that i shouldn't just simply take the medication.

I have taken medication in the past that has severely damaged my health - and who's to say that has damaged my health long term (it may well be that what is causing my problems now). I only learnt a few years down the line that i didn't need the medication and that i was being overdosed on 7 times the normal dosage of what i should have been on - and that was none! No wonder i was so ill and 'lost' 2 years of my life (for 2 years i cannot recall anything - 2 years of memories gone). This is why i am so reluctant to take any medication now, unless i thoroughly check it out - reading medical journals, data, statistics and as much information as i can find, before even considering taking it.
Obsessive - maybe.
Cautious - Definitely!

So, i have decided on this occasion - i am AGAINST taking Cabergoline, until i have official diagnosis and for that, i need to see an Endocrinologist. I am happy with that decision and have no regrets about not taking it. After all, i have waited all this time (4 years now), a few more months aren't going to hurt.