Do you live in the USA? The National Alzheimer's Association can be enormously helpful with information and support. There may be an office in your area. Our local director is a gem and very compassionate. He's written a few books on the subject. I'm sure he would talk with you, wherever you are. PM me if you want info.

Whether or not you need or want any such active support, my heart is with you. It's very difficult to see someone you love look the same on the outside, but almost become a different person. All the best to you at a very hard time.

Elmer