Lady has had seizures since I adopted her at age 4.5. Ten years later we have them very well controlled with both phenobarbital and potassium bromide (KBr). We added KBr when she was 6.5 and started having cluster seizures.
Cluster seizures refer to the frequency of seizures (multiple seizures in a twenty-four hour period), not the behavior during the seizure.
Lady has typical Grand Mal seizures. She loses consciousness, falls down, jerks, paddles, yelps, loses control of her bowels and bladder, etc.
I am glad you are taking him to a neurologist. In the meantime, this website has been my "bible" over the years.
Canine epilepsy and diseases that cause seizures in dogs