OK you said: "I think is prolactin"
Now the question is: How do you know?
You can't guess and take a drug to cure what you "guess" is the cause. When you used letro and dostinex, of course it took care of it because estrogen or prolactin as the cause, you killed them both with the mix. But you're putting in your body extra shit that is not necessary and you don't know what is causing inside your body.
Start posting your age, weight, etc all you details, what hormonal drugs/supplements have you used, etc. Depending on that info the right approach would be (ideally) getting a blood test done to determine what is out of chart and then using the right medication. If blood test is not possible, a small recommended dose of an anti-estrogen can be tried and see results.