Also odd is that OP uses the term 'seizure' but I think he means 'seized-up', like an engine that wont run. He explictly mentions at one point that the EEG didnt show anything like epilepsy.

But then he says things like "I'd work for 30 minutes, seize, sleep for 2 hours, then work, then seize, then sleep, ad nauseum."

If he was actually having siezures (absence seziures or focal seizures or myoclonic seizures or tonic clonic seizures) then presumably the EEG would have picked that up and he would have been diagnosed with and treated for epilepsy. At least I hope so because Tonic Clonic seizures (for example) can be extremely dangerous if they are uncontrolled.

Anyway I'm glad he has been able to get back to doing things in a way that feels sustainable and enjoyable.