The Alzheimer’s Society (AS) says: “Sudden changes in behaviour are often caused by a physical health problem such as constipation, pain or urinary tract infection – especially when the person seems to be more agitated, confused or distressed.
“If you notice a sudden change, it’s always a good idea to ask the person’s GP to visit.”
The charity suggests that people be aware of the person’s beliefs and thoughts and try not to argue with them.
“For example, if they believe they need to go and collect their children from school, don’t tell them they’re wrong. Instead ask them to tell you more about their children, or move their focus onto an activity,” it says.