Part of me says get your blood test taken care of first so you can take the guess work out of it. The other part of me thinks you should nip this in the butt now.

I would keep the arimidex where it is at and continue with the Nolva personally. A week is not enough time to resolve it so I would stay on the nolva for a few weeks longer after it resolves, then drop it and continue the arimidex.

What do you have for prolactin?