Worst injury out of the family, and I'd definitely agree with her. I definitely throughout the story was able to imagine myself being in her position and how dreadful it would be. I think self centered is totally fine, since it's her shitty circumstances that could really happen to anyone.

Losing your intelligence could very well be one of the scariest things.

Many people I have known remarked on how an older person they know has a failing body and an active mind. The mind being the most important.