Good on you for displaying such good airmanship.
And to self report focal symptoms say's a lot about your character.
Unfortunately, this has left you on the ground. I'd hazard a guess that you've been given some degree of leniency with a 12 month "watchful waiting" period. Interestingly you've been able to identify a "trigger" for your symptoms, which hopefully you should be able to avoid in the future.
We've probably all got our trigger's, it sounds like over-tiredness is yours.
(Mine is lime pickle and/or coffee.)
The scotoma, confusion and aphasia have likely worried the authorities,