A little eye-opener for you about Neurontin and bipolar disorder:
http://bipolar.about.com/cs/neuronti...ontin_suit.htm
I was on it about 10 years ago and it did absolutely nothing for my moods. As much as I liked my former psych nurse, it became apparent that she really didn't know what she was doing, so I changed providers. I've had pdocs not worth the paper their diplomas were written on. If you are losing faith in this pdoc, it may be time to find a new one.
Just my 2 cents.