Possible to treat bipolar disorder in children naturally?

Is it possible to successfully treat bipolar disorder without medication?

My 12 year old son displays serious signs of bipolar disorder (attempted suicide, manic episodes, depression, loss of friendships, can't handle criticism from parents, coaches, teachers, almost constantly irritable, very critical of others, goes from sweetness to anger...) He is seeing a pschyatrist who doesn't want to put him on meds and my wife doesn't think he is bipolar, but I think he is (and I think I may be as well).

I really hate going down the med route with my 12 year old and given my wife and I disagree on his potential of having it I'd like to try everything possible to without meds? Anyone successfully done this?