I would get an evaluation at a children's hospital through their out patients service. Call them personally to find out what referral is needed. You will be asked about your pregnancy, any newborn issues and what age he met each major developmental mark (look up a birth-three developmental list to refresh your memory), family history (including siblings, parents, cousins, your and husbands siblings, grand parents, and great- grand parents this includes drug issues, early deaths and why, make a mental health family tree to help remind you), disapline method, what you have tried (include sports, alternitive treatments, and medical intervention), hospitalizations, physical issues, surgeries (when and why ), abuse and neglected, and school and peer issues. Voice your behavior concerns and when they started, medication history, send or bring a teacher observation letter iclude their conserns, iep, psych evaluations, why you disagree with previous dx.

Do not expect a bipolar dx right away. Adhd/depression/anxiety was my sons first dx for his second opinion, his record still says that though he's treated for bipolar. My son keeps a daily mood chart using a serise of 'smiley' faces, (morning, lunch, after school, dinner, bed), I take notes of behavior and daily events, as well as major day events, and questions after he 'goes to bed'. Have his teacher writing what kind of day he had as well as home work and issues, write down time it took to complete each piece of homework. The more information you, his therapist, his psych. Dr, reg. Dr, iep team snd teacher have the more successful your son can be, I'd hesitate to inform the school of his new dx because accomidations are similar but stigma is different. Best of luck