life, I am not in the medical profession, so take my comments with that in mind.
However, my comment concerning psychosis is something I found after being diagnosed with adult-onset, intractible e. I confirmed this with my neurologist - not really the academic finding, but that they were not concerned with fully controlling my seizures. A few per year, all nocturnal and of the same type is unremarkable to my neurologist and is as good as can be expected. It was difficult for me to let go of the notion of returning to my former seizure-free life. I have been assimilated, as it were.
I didn't save the original source; this was several years ago. The clearest statement concerning seizures and complete control I've found this morning is from Schizophrenia-Like Psychosis and Epilepsy: The Status of the Association
in The American Journal of Psychiatry
(Am J Psychiatry 155:325-336, March 1998).
Brief psychotic episodes can also develop when seizures are infrequent or fully controlled. These psychoses last from days to weeks, they are usually self-limiting, and their separation from postictal psychoses may be difficult. The favored description is of an alternating psychosis... Unlike postictal psychosis, this psychosis can be ameliorated by the occurrence of one or more seizures (39).
A more general source:
So, it sounds like they are brief psychotic episodes, rather than cases of full-blown psychosis, but it's the same to me. If they keep me sane, I'll stick with my seizures under reasonably good control.
As I mentioned, I didn't confirm my layman's understanding of this with my neurologist, but it seems clear. I expect this is more of a problem with intractible epilepsy over an extended period than when only a few seizures have occurred, but that's just speculation on my part.