Ah... have you tried working with changing up the dosing as in smaller dosing more often, eating with it, only at night - or changing time of day...
Next time you are in the office, always get a copy on the way out. When you go the lab, ask for a copy when you hand in the paperwork. Ask for MRI reports at the MRI place. Get a copy of the MRI on CD as well. It is super duper important that you get copies of everything as then YOU can see what is being tested as I (and others) have been told xxx is ok only to find it either was not tested, not tested correctly or was really not ok. So read up too on testing and make sure it is done at the right time, no lab error and all that.
Thankfully your doc checked. You need a neuro-endo. I would find one.
I was allergic to bromocriptine they only offer that and cabergoline here, the sideeffects got worse over time, the nausea passed but i almost lost my mind. Hes just an endocronoligist thats all i know and i never get copies, it was my own doctor who checked the levels and called me in to say they were high again i have an appointment with my endo in November.
There are other medications in the class - they may help and the side effects may be more tolerable. They all have side effects - some go away over time, some are worse when you start up, some stay, some are just plain intolerable. Parlodel may work better for you - or you may have to dose differently (time of day, eating with it etc) and see how that goes.
Also, they need to check all your hormones - cortisol can mess with prolactin and so a cortisol issue may also be there (I had both tumors) or it could be other issues.
Is your endo a neuro-endo? Are you being treated at a pituitary center? Do you get copies of everything?