When depressed, I think I need a stimulant. Also, I have pretty severe pain and I read that a stimulant helps. However, with bipolar, or at least my personal experience with stimulants (street) makes me wary. Even coffee while hypo is probably a bad idea. I stick with decaf. Is it possible your doc is just looking out for your best interests? I know this is hard to consider due to how you feel and the lack of concentration. It never hurts to get a second opinion. By the way, congrats on your genius, Einstein.