I'm the caregiver for my 91 year old Grandmother with Alzheimer's. She has been sleeping almost a straight 24 hours, and when she woke up she kept asking for stuff she normally hates, such a spicy sausage. Then when I make it for her, she loses interest and just stared at the wall. We've done this for 5 meals until I finally got her to eat half a piece of toast with butter. Then she fell back asleep. Is this normal? I'm not new to caregiving, I've been doing it for 15 years but this is my first alz. This is really weird to me, and I'm starting to get worried.