Sorry for the loss of your mother! Our thoughts and prayers go out to you and your family.
My wife and I know what you are going through.
My mom passed away in 2003 she had lung problem for several years in and out of the hospital. The last time she was there she started to improve and suddenly she went down hill. They did what they could for her, but I guess her body had enough. She was 65. My dad passed in 1992 he was 58.
A month after my mom passed my wife's mom pass away she had cancer.
2003 wasn't a good year for us.
Take care!
Tom and Mary