Hi Scooter! I am sorry you continue to experience brain zaps.
I have heardof them, often, by people taking and/or tapering psych meds. I don't know as anyone has ever known much more about these zaps.

Offthe top of my head, I wonder if anti-epileptic meds might calm the brain; however, these meds bring problems of their own.

As I am writing, it comes to me that magnesium might be helpful, as it tends to calm the CNS. Magnesium is now considered as a very important part of a prophylactic approach to migraine for chronic migraineurs.

Just a thought.
My best!