Savita,
You are going back to school....good for you!!! I know you do so with a heavy heart, but as a mother, I'm sure that is the what your mom would want you to do. As the others have said, that is what any loving parent would want for children they love.
I just recently said goodbye to a friend who died from ovarian cancer at age 65. We talked on the phone and she sounded like herself...a week later her son called to tell me I should come over and say goodbye as she appeared to be going at anytime. When I got there, she had enough morphine in her, that I'm not sure she knew who I was anymore...when my mom passed from cancer 20 years ago....it was the same thing...when it got close to the end, all I could do was sit and hold her hand and pray and sing hymns...but in both cases, I couldn't remain by their bedside because of other obligations I had, and it was yet two weeks later that they passed. I was not there for either when they finally left us but I'm sure both fine ladies understood.
It will continue to be painful, no matter what happens next. I will pray that she doesn't have to suffer much longer, that the pain can be kept under control and that all of you will soon know the peace that only our loving Creator can give. Hugs,