For the past 2 years my mother has been sliding down the rabbit hole. Periods of great confusion, paranoia (well she's always been paranoid) short term memory worsening. Two weeks ago she got the flu as did many of the residents in her AL. No visiting. I've talked to on the phone daily. When the flu was worst she was worse than ever, confused, angry , thought I hadn't called. Then she got better. For the past 3 days it's as if her mind's function has rolled back ten years. Conversations are coherent. We were able to talk about selling her house...she brought it up. I don't know how long this will last. It is eerie when I've become accustomed to incoherence and anger.