I look at it this way: while my medication prescriber might know what's best for me medically, my T knows what's best for me emotionally. They each have different experience and expertise. My medical prescriber recently made a comment about one of my symptoms (hypervigilance). But I disregarded it because me and my T know my symptoms better, since we discuss them weekly and not once every three months.

All expert advice can be useful to consider, but not necessarily to follow.