Coleen,
My difficult child brought a teacher to the point that she had to take medical leave, she couldn't handle it and it was starting to take an ugly turn. I found out later that as much as he was a part of it, she was having personal problems as well. Please don't feel like it is all his fault. It's good that the school is now trying to help out more. The impulsiveness is such a huge part of their day. I know since the beginning of this school year all we heard from the teacher was about his impulsiveness and hyperactivity. Now that we have the medications sorted out, is it no longer a big issue.
I hope it gets better (((HUGS)))