Duke,
I suffered a brain injury many years ago (1977) and I can empathize. I still suffer from a seizure disorder (mostly controlled), short term memory problems (what was I saying???) and the occasional migraine that only really good drugs will cure (well, they don't really cure it, but a couple of grains of Morphine and I don't CARE if I have a migraine or not!!!) Even though I'm "recovered" and have been for many years, I still take medication (32 pills a day, including Phenobarbital, Phenotoin, Valium and various and sundry other barbituates, that are a MUST for survival) that really don't ENCOURAGE concentration and focus. If I start to lose my focus, I start keying on one thing in my stroke and try to concentrate on that. Example... if I feel my focus waivering, I'll think "Finish your stroke... finish your stroke... finish your stroke" and it really does help keep my focus in line... MOST OF THE TIME. BUT, other times, I couldn't focus on Paris H. standing in front of me naked, screaming "I want you Bob!!!!"

And sometimes, I really wouldn't CARE if she were standing in front of me naked... I'd just be cranky and say something insulting to her!

Such is life when you've had your gray matter out in the open air for awhile!
Best of Luck,
Bob
PS: From past experience, crank, coke, alchohol, hillbilly herion (crushed up oxycodone) and other popular "pool room additives" just make things worse for a brain injury patient. I've been "clean" for many many MANY years now, almost 2 decades, but I've tried everything to make my focus better... simply concentrating on one thing in my stroke worked better than all of the things I damaged my body with in the 80's.