Thanks everyone for the validation of my feelings.
Karen-Thanks for the link. I think we will have a PDD-NOS dx. But that will hopefully help my mother understand that ds does not need more sleep (he gets 12 hours a night), he is not "looking for attention", and that staying with her for the summer would "straighten him out".
On another note-did anyone have a fear that the evaluation would say that there is nothing "wrong" and I am just imagining everything?