Pdocs make their living prescribing meds and doing therapy so they need to keep coming up with more and more diagnoses for their patients. I was always very leery of my Pdoc and the other therapist for that reason.

It's entirely possible to treat bipolar using natural methods such as the mineral supplement lithium orotate along with amino acids, herbs, fish oil and other nutrients. I've had bipolar since I was a young teen and am now 60, and am doing better than I ever have using supplements. The reason I'm doing so well is because the supplements [amino acids and lithium orotate in particular] give my brain what it needs to produce the neurotransmitters it needs to be able to function properly so I'm not overcome with waves of depression or flipped into hypomania.

Here's a great brain function questionnaire that shows what neurotransmitter corresponds to what emotion.

http://drjolee.com/Brain-Function-Questionnaire.pdf