question: 11 MONTHS AGO MY SISTER WAS DIAGOSE WITH PANCREA CANCER , BUT COULD NOT OPERATE HER THE TUMOR WAS BY THE ARTERI VEIN THAT IT WAS DANGER IF THEY REMOVE IT , SHE HAS A STENT FOR BILE DUCT, SHE VOMITS GREEN SUBSTANCE AND WASTE GREEN SUBSTANCE TOO , SHE HAS SWOLLEN FEET AND BELLY , SHE HAD CHIMO ABOUT 7 MONTHS AGO M AND TODAY SHE REPEAT CHEMO AGAIN , SHE ALWAYS WITH PAIN IN HER BODY ESPECIALLY IN HER BELLY AND HER BACK , CAN YOU TELL ME WHAT STAGE TO YOU THING IT IS , ? BECAUSE SHE WILL NOT WANT US TO ASK DOCTORS , AND HOW DANGER SHE IS ? THANK YOU ...MARIA