My 87 Year Old Mom Has Had Frequent Falls, Her

My 87 year old Mom has had frequent falls, her pcp gave me a sheet about Alzheimer's. She says she gets dizzy. At night she seems to be worse. She get up from bed multiple times during the night. (Not to go to the bathroom). She seems not to have a concept of time - AM or PM. In the past couple of weeks, she seem to ask the same question 5 x's in 10 minutes. She has always been a fantastic quilt maker - completely by hand, always to perfection, in knitting also - a perfectionist - and able to create anything. Within the past 2 weeks she cannot knit a row without making multiple errors - she'll try to fix - but makes it worse. The quilt making - looks like I as a pre beginner made. Any help for me in help my Mom ?