hey Daphne, welcome to the board!
I can relate to your processing the dx.
You're doing great to get your son lots of intervention early! I wish I would have pushed harder for my son. He was not Dx until age 8 w/ autism and we lost valuable time. I don't know anything about ABA (I believe that's Renee's specialty), but I would call the IU back and get him reevaluated. Having a new Dx might get them to act as well and having them pay for it is much better than doing it out of pocket! Also having some kind of therapy would help w/ the long summer issues you're concerned with.
Soudns liek you are in PA??
Thanks so much, everyone, for your replies!
Regarding the vitamin question...
Many medical doctors will not promote/encourage the use of vitamin supplements because they are not approved by the FDA. My DH is a physical therapist and he told me a story about how one of his doctor friends was sued by a patient because the individual had a negative reaction to a vitamin supplement and the patient was blaming this friend/doctor for having not warned her about it.
That being said, I am NOT telling you shouldn't try/use supplements with your child. I'm just explaining why the Dev. Ped. may not have suggested it. Dev. peds. are often not "on board" with biomedical approaches to the treatment of autism as the research on it is sometimes considered speculative. (Simply stated, you won't find many dev. peds. prescribing chelation therapy.)
I know this doesn't help...but perhaps it at least explains.
I live in Chester County.