You must be so frustrated. My Dr. says that one medication alone is often not enough. For instance, he gives me antidepressants but adds mood stabilizers. without the mood stabilizers the antidepressant didn't work properly. Once I got the right amt. of stabilizers I immediately could tell the difference.
It's too bad you have to be victim to your medical system. It sounds like your GP is better informed and more responsive than your pdoc! Thank goodness that you have him.