I would. Two things jumped out at me. First of all, that seems to be a pretty high Working Memory score for a child with ADHD. I'm not a psychologist so someone may know better than I, but I know that when DS9 was tested his high Working Memory was something our psych used to explain to us why we the behavior we were seeing *wasn't* ADHD. When another gifted friend was tested (who has since been confirmed to have ADHD through extensive testing) her Working Memory score was rock bottom.
Second, you mentioned that when filling out the inventories you all were referring to school situations. We did that too when we filled them out initially and DS came out as likely ADHD. We went to the psych who explained that we needed to refer to the home environment. Part of the DSM criteria for ADHD is that the behaviors are present in more than one environment- so if you are all filling it out based on what you know about his behavior at *school* you are missing the chance to evaluate two environments and are really evaluating only one. After we found that out we filled it out based on what WE saw at HOME and DS no longer met criteria based on the inventories.
As he's aged from 8 to 9, so many of the things that were driving the school crazy have slowly worked themselves out, assuring me that the psych was correct that this was not ADHD and was merely asynchronous behavior and struggles with giftedness in the classroom. I can't speak for your son and whether the diagnosis is correct or not. But I can say that your questioning it seems very reasonable to me.
