My mom passed away from it too. My sister says it was multi-infarct dementia but I don't think so. She was exactly the same as the other Alzheimer's patients at the nursing home when it started to get bad. She just never got mean like some of the others did. Not all of them got mean either.
It's such a horrible disease, but hopefully the patient really isn't aware of the extent of their suffering after their mind gets to a certain point of disease severity. I think it's mostly hard on the loved ones to see them go through it.
I still remember the last "I love you" from my mom. She didn't know me anymore, but viewed me as a nice lady who talked to her and hugged her, maybe one of the nurses. She was to the point of rarely having a good day anymore. It was Christmas day 2004 and my dad had just passed away a few days before. DH and and our sons and I walked into her room where she was resting in bed. She looked up at me and smiled big and said it and reached out to hug me. It was the best Christmas present I ever had and ever will have. We were all in tears as soon as it happened but it was
wonderful.
Anyway, I try to play puzzle games and read a lot. I eat foods that are supposed to keep the mind strong against the disease. We
certainly don't need that to go along with the MS.