My mother was just diagnosed with advanced cc about 2 weeks ago. In the course of these 2 weeks her main tumor increased by 50%. She is experiencing what I looked up to be delerium. She has almost no short term memory, forgets where she is, mixes up words (which wouldn't be so bad, but she also makes up words and combines words and says sentences that make no sense at all). She'll sometimes just say words out of the blue that make no sense. Has anyone else experienced this? What have you done for it?