What should I do if the baby has been spitting up since last night and has diarrhea during the day?

Patient's question:

Yesterday, I started spitting up milk a few days ago. Since this morning, I've been having diarrhea. I took Montmorillonite Powder, but it didn't help. Test results: normal. Previous treatment history and effectiveness: none. What kind of help do you need: how to get better

Doctor's answer:

First of all, I wish you good health. Indigestion and gastrointestinal discomfort are diseases caused by gastric motility disorders, including gastroparesis with poor stomach peristalsis and gastroesophageal reflux disease. The symptoms manifest as intermittent upper abdominal discomfort or pain, bloating, heartburn (acid reflux), belching, etc. Due to discomfort such as chest tightness, early satiety, and abdominal pain, people may avoid defecating or try to minimize bowel movements, and it is also difficult to fall asleep at night. After falling asleep, they often have nightmares.