75+ year old Mom with Dementia (diagnosed approx 5-6 years ago) experiencing weakness in the lower half of her body. Becoming increasingly difficult for her to walk for more than 10 feet without "resting" on a bench for a few minutes. Has or is anyone else experienced this with a loved one? I know Dementia is one of those "we don't know alot yet" diseases but I am also finding it difficult to gather much on "symptoms" other than behavioral and memory. If anyone has any suggestions of some good books or websites please let me know! Thank you!