Janet,
While not the same, I remember at the end, before we knew it was time to give up, my mom had a day she considered stopping and as her daughter, I was mad and didn't get it I was selfish. I see that now. Turned out the dr said she couldnt make any decisions until she had the fluid drained from her lung b/c she was not really with it and it was the end.
My advice, which was our motto, was go with whatever the oncologist said.
Love and hugs to you.