A.
I would get him to a neurologist immediately! Honestly, that is not a normal thing for a child, and should not be ignored. One thing that you could look into, not that I am saying this is what is wrong, just that it could be, is something called Arnold Chiari Malformations. My younger sister was recently diagnosed with this, and the main complaint she had was severe migraine type headaches, with dizziness. It took her years to get a good diagnosis, but finally they discovered the problem. So, find a great neurologist, and dont stop until someone gives you a reason for his suffering..it really is not something that he should have to live with at his young age. Ohh, I can only imagine how you must feel for him. Let us know how it goes! ~A.~