I live with my gf and her great grandma who suffers from Alzheimers. I want to gain a better understanding of it and what it does because all i ever see or hear about is how people with it cannot form new memories but i didnt know that wasnt the extent of it. She does very strange things. She puts papers and milk jugs in the sink, she destroys the kitchen every day, she acts out and yells at us for no reason, she is extremely excessive. For example, she drinks about 2 12 packs of pepsi in less than one week. And yes me and my gf have tried to get her to stop. She does it behind our back and gets our neighbor to buy her some. Living with her is very difficult. She does the most random and strange things. And because i have little to no understanding of Alzheimer's, im not sure if the way she acts is due to her personality or due to her disease. I dont know what to do.