I agree with the others, get a 2nd opinion.
One usually needs a mood stabilizer, Effexor is an AD not mood stabilizer, perhaps you are only being partially treated, I had, and it wasn't AD's I needed, just the proper doc who knew his stuff. Try for a 2nd opinion.
Sef-DX or questionarries, cannot replace a true evaluation from a pdoc. Such things, can give ideas to people,but then some people may read into things, and creating more stress for themselves. Bipolar is not just a "black and white" sort of disorder, there are variants, even other disorders can mimic some behaviours of Bipolar. And it is possible for people to have more than one disorder at the same time, where the most severe one needs to be addressed first.
Just my 2 cents.