Did some dealing with Charlie late spring with a visit. He's been thru the ringer.
For a long time, he beat himself up for a lot of alcohol use in his past...dunno if it's tied to all this, but if you or friends are prone thus, might pay to look at those who traveled that road and what costs come later.
Charlie is one of the most intelligent people with talent to do so many things it's amazing! I cannot fathom what it must be like to be rendered inert this way with all the toys he's surrounded himself with and hobbies and skills he's developed.
I'm so very sad to read all this... vision, hearing, balance... on and on and on... I sure hope this is a good diagnosis, for he has had so many varied ones for YEARS!
May God's peace and mercy rest on Charlie and those close to him to provide support. I wish I'd not moved so very far away... :(