I have been suffering from excessive belching and gas along with lower abdominal cramping, and bloating . Symptoms get worse after drinking coffee or eating fatty foods ( which also lead to acid reflux ). 5 years ago ( at the age of 17/18) I ignored bloody stools for 2-3 weeks till the pain led me to see a Gastroenterologist . He performed a colonscopy in which a few polyps were found in my large intestine. He also tested for Celiac disease and a possible bacterial infection in the stomach ( test came out negative). He advised me to perform a colonscopy every 2 years which I haven t done due to no health insurance. 2 years ago,though, I did have an endoscopy done and was diagnosed with Chronic Gastritis ( I was given Nexium). I have noticed that when I go to the bathroom, there are times my stools come with a brown mucous. The constituency vary time to time. There are also times my stools are solid, dark and hard, ball-shaped, green, or very soft. I do get constipation and sometimes I get diarrhea . Passing gas can get difficult and painful at times and I do feel like vomiting too. I have looked into IBS, which can fit my current symptoms perfectly...but I need advice. thank you. ( I forgot to mention that I am 22 years of age and a female)