According to the symptoms you reported, you might be experiencing two separate gastrointestinal disorders: Gastroesophageal Reflux Disease (GERD) and Irritable bowel syndrome.
Gastroesophageal reflux disease (GERD) is characterized with abnormal reflux of the gastric acid in the esophagus. The symptoms might relieve once you start taking the prescribed medication. Try eating smaller quantities of food, avoid fried, spicy and food rich in fat.
Irritable bowel syndrome (IBS) is a functional bowel disorder characterized by chronic abdominal pain, discomfort, bloating and alteration of bowel habits in the absence of any organic cause. You might want to wait for the diarrhea to stop. Meanwhile take more fluids to replace the lost one. If it does not stop for several days or blood appears in the stool, you might want to visit your family doctor for further tests and treatment.
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