Therapy

So I went to my therapist today, finally, after about two months, and he seems to think that this is all chemical. When I tried to tell him that I thought maybe there could be some underlying emotional things, issues I have "festering", he basically told me that everyone has these issues, but for those of us with chemical imbalances, the dp and dr gets worse. I'm starting to doubt this though, becuase I have been on medications for eight years and the dp keeps creeping back in, even when i'm otherwise "normal". Any ideas on how to approach the idea of other types of therapy with him? (ie, cognitive behavioral, or looking mroe into the unconcious/whatever?)