This is very difficult to answer without being able to examine your daughter. She appears to have a bad cold.With the cold she may have a post nasal drip with mucous being swallowed and ending up in her stomach. This kind of mucous is often verey irritating to the stomach lining and can cause a tummy ache. It would be best to keep your little girl's nose as clear as possible by using a saline spray such as Sterimar Children's nose spray at least twice a day.
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