Constantly passing gas and pooping, worried about colon cancer? dr says it is ibs but simethicone doesn't stop the farting/burping, what do i do?

This is not a symptom of colon cancer especially in someone your age. Your diet can definitely contribute to your symptoms. Consider following up with a gastroenterologist

Talk to your doc about your worries. They may contribute to your symptoms. Food types and eating technique (slow/fast, hot/cold/room temperature) are only few variables among others that typically influence gas formation and/or stool consistency.