[MENTION=199865]Bendopolo[/MENTION], I have no sage advice to offer up. My Dad is 86 years old and has dementia, so I think I know what you are going through.
You are a GREAT son, pat yourself on the back, you've earned it. Don't let the Kaiser nurses bring you down.
Please if you can at all, go for a ride. Even a short ride. It will do you a world of good. This I know.