What has been happening may not be a classic seizure since generalized seizures would present as loss of consciousness and stiffening of extremities. From what you have described, I believe there might be some problem with the frontal lobes of the brain that controls behavior (so called 'frontal lobe syndrome'). there can be a viral infection of that area, or localized hyperactivity of the cells found in that lobe.
A possibility of behavioral problems such as anti-social personality disorder, or ADHD (attention deficit hyperactivity disorder) may also come into play. I suggest you have him checked by a neurologist to narrow down the possibilities.
i agree, have your child be seen by a neurologist.
my son was diagnosed with lennox gaustant syndrome would the vns help him.