My mom has been staying with me from out of town for 3 weeks. Her symptoms are: not being able to stay awake, legs have become weak and unable to hold her up, her memory has gotten much worse and she can t think of words to say or says the wrong word a lot. She is 80 years old and has bad knees--both need to be replaced but we don t feel she can do therapy. She was getting around slowly at home, but since here I have to shower her, help her up from chairs, help her walk, etc. It seems to have come on so suddenly.