Thank you SO much, everyone, for your words of support. You don't know how much it means.
My mom's dementia is not something new. We've known for a while. She has had two MRIs over the past couple of years, and several cognitive tests. This one is just a follow-up, because they were unable to give her a clear diagnosis last year. She technically does not have dementia, but shows symptoms of it, as well as some symptoms of Parkinson's (but not enough to be diagnosed with it), and visual evidence (from the MRIs) of many small strokes. The one thing she has for sure is called vascular cognitive impairment -- loss of cognitive function due to the strokes -- but the upshot is the same as it would be for Alzheimer's: memory loss, communication difficulties and a diminishing ability to use judgment and reasoning.
You will never hear me complain about the medical system in Canada. When you are in need, they are there.
Our house seems so empty without our sweet puppy.
I'll be back when I can, but thank you all again for taking the time to write something nice. I cried when I read your comments.