There is no assurance that because a doctor is board certified child and adolescent psychiatrist that s/he is going to be the best doctor for your child. Both psychiatrists who treated my son left the antidepressant in place even after his suicide attempt and months of violent rages. The second one was considering removing the antidepressant but was moving slowly. That was before the black box warnings and the related publicity that spelled out the suicidal ideation and hostility that can occur with antidepressants but the information was available and the doctors should have been more aware of the psychiatric adverse reactions those drugs can cause. Today, there is no excuse for a doctor to not know and not warn parents to watch for negative changes when kids are taking those drugs....and that includes Strattera, which some doctor still don't quite grasp is an antidepressant and all the antidepressant warning apply.
Not only was the Zoloft increased, the Strattera was added. And not only are there issues with suicidal ideation, there are issues with "hostility", a category which includes, among other things, homicidal ideation.
I'd talk to her. If she blows it off with a "that really doesn't happen" or something like that, I would do without a psychiatrist rather than take my child to her.