just told i had the same disorder. don't know if i accept/believe it yet. however, my understanding....you're up sometimes you're down sometimes. you're sometimes a sweetie. you're sometimes a bitch. i get the impression that other people may not have any idea which reaction "you" will give. my take...how old is your stepdaughter? probably not that old...as anybody she needs someone to listen and not condescend....maybe. . anyway.... i don't know much about it either. just frustration.