My grandma is 82 and she has had her kneecaps replaced and broke her right foot twice and her spine is a mess. She can barely walk so did not drink water much in order not to have to pee. Tried as we might, we could not chnge this terrible habit. She has developed a urinary infection now and has had extreme fever when she was admitted to the hospital. Has been getting better slowly, been a week now. But she keeps talking about things that are not happening and her motor functions have severely gotten worse. Could she have developed a form of dementia?