My momma died at the age of 75. Her health had been in decline for a couple of years but it nose dived on July 3rd, 2001 (mom and dad's 47th anniversary) she had a major stroke that while causing little physical harm left her with severe dementia. She never had a cogent thought for the rest of her life. After a brief stay at a clinic for senile dementia we had her put into a nursing home. But she had to be restrained. And she managed to get out of her restraints, fell and broke her hip. Then while in the hospital she came down with a severe Staph infection. Then she developed pneumonia. Then after finally recovering enough to leave the hospital, dad put her in a different nursing home. Then she died her first day there. It hurt me so badly for the first couple of years. In particular Annalee being too young to remember her grandmother (Annalee was only a year and seven months then). But now, I realize that even if she had lived momma would've probably long died by now. Today Annalee texted me and said that she wished she could haver "come to know" her "granny".
I am so sorry for your loss. One thing to keep in mind is that you have all those beautiful memories with your mom so her "spirit" lives on each day you reflect on the love and joy she brought to your life. Annalee may not have been old enough to "know" her "granny" but she is definitely able to see her light shine within/through you. Love is the only thing that NEVER dies. Kind regards.