Cancer stinks

So my mom is still battling her cancer. She was told yesterday that she has some now in her skull and her left leg bone, and that there is something unconclusive in her liver. It hurts all the time. She hides it well. She goes on Friday for a very long extensive MRI to determine everything.
Let me tell you something about my mom. She is beautiful. She cares for us so much. Her worry is not for herself or death, she knows that she will be with Jesus when she dies, but she worries for us. For my dad that he will be able to take care of things that need to be done. For my sister that she will not always work so hard and worry about so much. For me and my happiness and wardrobe. :) For our kids and their birthdays and our just over all happiness. She loves her family so much. She is the most giving mother and truely blesses me every day.
We went to the mall yesterday and got her a new purse. She needs a lighter purse to carry and wanted to pick out a really cute one. We walked around trying on purses and shared in a pretzel dog, in my opinion the best thing they have in the mall. The time we spent together just the two of us was priceless. My mother is truely my best friend, she makes me laugh and loves me unconditionally. OF coarse she mothers like any good mother would and always shares her opinion in her most loving way. But i have to tell you i am going to be lost without her.
Why does Cancer have to be so horrible? Why does it hurt so much? We get the news and all we can do is sit back and wait. Wait for the pain to be worse, wait for the sickness to take over. It is very hard. I am so thankful that my mom is secure in Jesus love for her. That she truly knows the One in Whom she trusts. I only pray that i can be the best daughter I can for her in the time we have left.