It seems pretty important to let pdoc know ALL of the meds you are on. Really, med interactions/side effects can be a matter of life and death...and a pdoc is going to have a lot more knowledge than a general practitioner about the interactions between psych meds.

I wonder if the overarching issue is a lack of trust between Pdoc and yourself? He seems suspicious about your xanax use, and it sounds like you don't totally trust his opinion on meds. Do you feel like you need to find a different Pdoc??