Diarrhea is medically known as diarrhea. Tummy gurgling diarrhea belching without acid reflux may be caused by gastrointestinal dysfunction, gastroenteritis, chronic gastritis combined with chronic enteritis, etc. In the general colonoscopy at the same time, you can also carry out a gastroscopy, blood tests, stool routine and other tests. 1. Gastrointestinal dysfunction: improper diet, anxiety, late night and other reasons may lead to gastrointestinal dysfunction, stomach grumbling diarrhea belching without acid reflux symptoms, can be further examined enteroscopy, gastroscopy, abdominal ultrasound and other items to find the cause. 2. gastroenteritis: improper diet, viral or bacterial infections may lead to gastroenteritis with symptoms of gurgling diarrhea and belching without acid reflux. You can further check the colonoscopy, blood test, stool routine and other programs to find the cause. 3. Chronic gastritis combined with chronic enteritis: Helicobacter pylori infection, irregular diet, drugs and other reasons may lead to chronic gastritis combined with chronic enteritis symptoms of stomach grumbling diarrhea belching without acid reflux. It is necessary to further examine the colonoscopy, gastroscopy, Helicobacter pylori breath test and other items to find the cause. Stomach grumbling diarrhea belching without acid reflux may also be caused by other reasons, the examination of the colonoscopy alone may not be able to find out the specific cause, so you need to improve the examination under the guidance of the doctor.