I thankfully don’t have TBI, but doctors suspect I got epilepsy from a few mild concussions when I was a kid. I wish you and the author well, from someone who knows all too well about brain problems.
Epilepsy. Hmm.
One doctor said it could be myoclonic seizures that are happening when the wake part of the sleep/wake cycle kicked in.
These are tough things we deal with, both of us and one day at a time is the only approach that seems to work for me.