Is passing a lot of gas a sign of cancer? im 38? have no blood in my stools just gassey at times?

Your gas is more likely related to digestive issues or dietary changes. See your doctor or a gastroenterologist for evaluation. Possibilities include, but are not limited to: lactose intolerance, pancreatic enzyme deficiency, sudden increase in fiber intake and food allergies.

Agree with Dr. Madonna, For information on this topic, visit this site: Flatulence: https://www.niddk.nih.gov/health-information/digestive-diseases/gas-digestive-tract/eating-diet-nutrition