Lot 35 Lbs Since July. Severe Back Pain. In 2015

Lot 35 lbs since July. Severe back pain. In 2015 mass in pancreas was 3.0cm now it is 3.6cm. Pancreatic head is at 4mm. Have done MRI, Ct, X-ray, colonoscopy, upper go. What's a rough estimate of this being cancer?? Never mind I can't pay this. I have already accumulated 15,000 in medical bills since January 1, 2017. Sorry for the inconvenience. Take care.