Been there got the t-shirt…
Had one about four years ago now. Was stressed out to the max at the time, went out and got pissed, had four hours sleep and had a seizure the morning after.
Did the same tests as you, saw neurologist, mri etc all clear. There’s no doubt in my mind it was a combination of the stress, booze and lack of sleep.
I’m now very careful about managing stress levels and getting a good nights sleep. And after being a bit of a boozer for years I stopped drinking apart from the odd pint. Aside from not having another seizure I’ve never felt better and feel like it was a good wake up call.
Email me if you want more info.