I'm sorry to hear about your mom's diagnoses. Do you know any common genes involved with Lewey? When we discuss genes associated with Celiac here, we are using a very shortened abbreviation of the HLA strand. We do have some very infromed members of the forum, but quite a few members are MIA!!?
As a side note note... Someone I know was working with some Alzheimer patients and closed head injuries. I asked if it would be helpful for a "memory board" for the patient. (Stole the idea from 50 first dates movie) I would hate to wake up every morning and not be "in the know" for my life. I don't know if these people awake with a moment of time memory. Like a mother thinking her child is 2 years old and freaking out they are unattended.
Maybe this is something you work on with your mother to pick and choose pictures, write out tidbits of information. She may want to "confess" certain things. (My grandfather would slip into coherance and talk about being scared to death the Natzi's were trying to take him to be a translater because he could speak 7 languages. He was very young, Too young to be a soldier.) I think sometimes those fears need to be known and much easier to calm the person from becoming combative.