bipolar and borderline personality disorder

My name is Abby. I have a son who is 19 and was diagnosed with bipolar in March of this year. Today he went for a second opinion and was told that although he meets alot of the criteria of bipolar, he doesn't really fit into either bipolar i or ii. The dr. felt he might also have borderline personality disorder. It actually makes sense to me, my husband and my son that this could be a possibility. He has been on 1500 mg of lithium and 200mg of seroquel right now and it's not really working so we may be changing meds. Has anyone out there had this combo of diagnosis?

My mother's dx was recently changed from Bipolar NOS(non otherwise specified) to Addict, Boderline personality, Cluster B personality and Bipolar NOS. Once the dx was made it was like everything fell into place. I studied up on ALL the disorders and it was like reading a book about my mother. The medciation that they use to treat bipolar aren't really effective for Borderline Personality, from what I have read. Mostly just help mask the overt symptoms of bipolar. Much of the treatment and managment is done through coping and recognition of syptoms and behaviours. The thing about having the dual diagnoses of both bipolar and borderline requires that the person two be extra vigilant in the managment because they are now dealing with chemical imbalance but also a innate,genetic predisposition to behave in a certain way. I wish you and your family luck. I hope it goes better for you than it has for me, being the daughter of someone with this dual diagnoses.

Many blessings to you.

Be Well