That also sounds fishy to me. If you don't have a disorder they can put a name on, then you shouldn't be seeing a p-doc for medication of this "non-problem". Most liekely they don't want to have to explain themselves or pay for any compensation you might demand.
MMPI is a state sensitive test, meaning that the results might change from day to day, depending on how you are at the moment you take it. Usually it is pretty good for picking up depression, and so on, but I would want to see how well you do on a another measure that might point out chronic or recurrent problems. Are they trying to paint you out as having a P-disorder? In that case they have used the wrong test, really.
I agree with Elysium and Leacon on this. I know it is hard to give a damn when you think of all the fuss, but I would seriously consider getting and independant second opinion and calling them on it. Huggs, and good luck, what ever you decide to do. That is just awful.