It's not a delusion (he would not recognize it as problematic) and is unlikely to be a hallucination, IMO.
It's actually pretty difficult to get a seizure disorder dx--so that part wouldn't concern me, in terms of the neurologist.
It does sound like it's related to EF--in that he has trouble switching gears, once it's begun. Still, wouldn't worry about needing to medicate unless it is interfering with his functioning.
Can he make himself stop if he *has* to stop? In school, for instance, would he be able to respond to a teacher's asking him to sit down and be quiet?
