He's now a decade into it and he's in the "severe" stage and it's rough. He thinks there are 4 exact replicas of his house and 4 exact replicas of my mom. He's constantly worried that the bad people he sees throughout the day are going to take his house and take my mom away from him. He's often agitated and confused and the neurologist has told us that it will only get more difficult for him in the coming months.