I agree with Wobbly (mostly). reason I say mostly is that I've had some bad experiences with a few pdocs out there. they treat us like guinea pigs basically because meds work differently on different patients and have different side effects on different people. it's pretty hard.
Read up on Kay Redfield Jamison's books. she's a bipolar psychiatrist. probably one of the best sources. patty duke wrote a great book as well on bipolar. you need to learn and identify her symptoms. we bipolars have a hard time knowing when a "phase" (up or down) is coming on.
is she ever hypersexual, overly-creative, extremely irritable? these are some of the manic signs.
depression ranges from fatigue and boredom to suicidal thoughts and behavior.
it's pretty much heaven and hell and everything in between.
we're normally like "normal" people most of the time when properly medicated. it took me a long time to get on the right meds.
i would also check into her nutrition/diet as well as exercise habits. this makes a big difference in our lives.
hope that helps...