Thanks for your response

I should have added that part about the OT. Yes, we had an OT eval done about a year ago, and the fine motor skills came out fine, with the gross motor skills delayed a bit. So we did OT for about a year and then the OT said that he was "done" and seemed fine. But the issues still linger, in terms of sports, and probably always will. I was wondering about the organizational challenges associated with dyspraxia, which the OT didn't address.
I think he is definitely introverted, lots of other examples. I know because both my husband and I are also introverted. Definitely needs to recharge after school, parties, etc. I'm wondering if the introversion is causing him to sort of space out in school as well as his energy drains (it's a large class, very noisy, she has them sitting in groups, etc).
I haven't done any other testing, other than the WISC. Not sure even where I would start, with who, or what I am looking for, know what I mean? Teachers have never suggested testing, other than the OT eval from the PE teacher, and he's been in both public and parochial schools and had exposure to many teachers.
I read Marti Laney Olsen's book last night about introverted children, and she had a part that introversion in children is often confused with ADD-PI. Her point, I think if I read it right, is that introverts eventually learn the skills to "fake it" in our extroverted society, but children haven't learned that yet, so they are just being themselves and zoning out when their energy is depleted. And then I reread about dyspraxia and noticed an organizational component there too, gah!
ETA: Another interesting fact, about 60% of gifted children are introverts, compared with only 30% of the general population. I wonder if we, as a society, are ignoring this trait when it comes to bright and gifted kids? Most elementary school teachers are extroverts as well.