For the past month i have had floating stool on and off. no other symptoms. my diet has not changed. worried about pancreatic cancer. ?

Highly unlikely: You are correct that floating stool can be a sign of pancreatic cancer but I would estimate that at least 99% of those with floating stool do not have pancreatic cancer; there are many other causes that are much more common. See this article for a good discussion: https://www.verywellhealth.com/floating-stool-89206 If you are still concerned see your doctor for further assessment.