It is not clear to me what makes you worry about possibility of pancreatic cancer. Anyway, pancreatic cancer often have vague gastrointestinal symtoms. As almost every report came as normal in your case no organic disease can be suspected right now. For your information pancreatic cancer can be diagnosed on the basis of pancreatic protocol CT scan
. Your present investigation and symptoms not in favor of pancreatic cancer. Follow your doctors' advise.