Hi Addy ....
I agree ... that doc is a real jerk.
I know about trying different meds until finding something that works. I also know about docs who make suggestions when they really don't know me. When I'm feeling stronger (and less depressed) then I am more apt to trust my instincts but, when I'm not doing well then I might think some doctor does know best.
I think you should keep up with what is working for you and if you question it yourself, then speaking to your regular doctor would make sense.