Both my parents have Alzheimer's but my dad also has Parkinson. My mom for the past 2 weeks has been alot more forgetful than usual and now for the past 2 days she is sleeping constantly and i mean she does not even want to get up. I gave her a cookie and she was eating it with her eyes closed. The doctor tells me its just her Alzheimer. I don't get it can it be from one day to the next getting worst.