human colon and gas medical icon

abdomen art background belch belly bloating bowel cartoon clip clipart colon colonoscopy constipation diarrhea digestion digestive discomfort disorder entrails flat gas gases gastral gastroenterology gastrointestinal gut health heartburn human icon icons illustration intestin intestinal intestine intestines irritable isolated large line logo logos medical microflora pictogram shape sign signs silhouette small stomach syndrome system tract unhealthy upset vector white