I am a 40 year old femal with symptoms of pancreatic cancer. I have had 3 CT scans and 3 Xrays. I have been?

an oncologist who took a lot of blood. I have an MRI scheduled for Monday. Would they have found or seen the pancreatic cancer if it were there? They have not found anything yet. I have also had 2 endoscopy's and 1 colonoscopy. I itch and have nausea and heartburn and have lost 20 pounds!