Liver problems including hepatitis are easily detected by an ultrasound scan and liver enzymes (which are raised). Hepatitis can result in
fatty liver, but usually
fatty liver is associated with fat rich diet, drinking alcohol, diabetes, obesity and dyslipidemias (high cholesterol and triglycerides). The good thing is that it responds to diet control and exercise. Also, yes, inflammatory bowel disease (which also causes lot of gas and stool problems) can also cause fatty liver.