I think thats why cancer is such a vicious illness to have a loved one experience. Its a long drawn-out suffering, with an inevitability at the end of it. The body shuts down gradually as the cancer wins out. For my sister it was the same with 'good days' vs 'bad days'. At first bad days were the minority and over time the ratio changed.
A sister's friend's mother had a very aggressive cancer that was diagnosed and in 10 days killed her. In a twisted way, I think that might be worse than tge long drawn battle, where more time is available.
I have no first hand experience, so this is speculation. It was just shocking to hear.
