Hi there!
I'm currently on Dostinex as well after an MRI showed a pituitary microadenoma. My prolactin levels were elevated because of it and my endo said that I'll stay on Dostinex for a year (unless I get pg first). I can't say that it really helped my periods since they're still irregular (though more regular than before), but I know that it's helped some people more. On the Dostinex my prolactin levels are undetectable, so that's good. I'm now on 1/2 of a .5mg pill per week after 3 months of .5mg per week.
As for the side effects you mentioned..
"or those taking it, did you notice an increase in oily skin, hair loss or acne? did you notice an increase in your libido?"
I have had virtually no side effects with Dostinex and did not notice any changes in any of these things. I was previously on bromocriptine and the side effects of that were horrendous, so I may have not noticed any side effects with Dostinex because they were so much milder than the bromocriptine.
Anyway, I hope that the Dostinex works for you! If you have any other questions, just ask.
