What are the early symptoms of gastroesophageal reflux?

Early symptoms are mainly vomiting, vomiting is the first symptom of reflux, but quite a number of infants and young children do not show vomiting, performance for galactorrhoea or a little nausea nausea, older children may show acid reflux or after meals and lying down when there is acid reflux, resulting in sour taste in the mouth. It may also show nausea, belching, burning sensation behind the sternum or under the xiphoid process. As the age increases, the symptoms are similar to those of adults. Most children do not show vomiting, mainly manifested by reflux esophagitis, mainly burning sensation, swallowing pain, swallowing difficulty. Severe cases may show eating difficulties, do not want to eat, irritability, and may also show esophageal spasm. Severe cases may show erosive ulcers, causing vomiting and black stools.