Hi Meandma
I watched both my parents die from cancer. My father - 16 years ago. No treatment options were given to him as his cancer was too widespread. My darling mum died 2 years ago from pancreatic cancer, and again, no treatment options for her.
It is a struggle to watch the ones we love being torn apart by cancer, but I viewed it as a priviledge that I was there with them during their times of need. I was holding my mums hand when you took her last breath, and I feel honoured (and yet heartbroken at the same time) to have been at her side.
I can only imagine how it must hurt you to have to watch your mum coping with the effects of chemo and the cancer. I'm sure if you were able to swap places with your mum she would say to you 'No - I have lived a good life and you havent lived yours yet!' I am sure she wouldnt want to deprive you of the years ahead of you. Cherish you mum while you still have, dont ask yourself 'why mum, and not me', just be there for her and dont forget to try and take care of yourself, at the same time.
Life can be a real b*&^h at times, but unfortunately there is not a lot that we can do to change it. Dont be hard on yourself and give your mum lots of love.
Take care and good luck