Hi, The commonest causes of night time vomiting in a child who has come from abroad can be as follows: Change of water, food, atmosphere, surroundings not suitable and so on Intestinal problems like intolerance to certain foods and fluids Worms in intestine Gastritis Over-eating Abdominal lymph nodes Hence, I would advise you to observe all above causes and try to rectify the foods, fluids and factors as per requirement of your daughter. If this does not help then it is better to consult a Pediatrician and get investigations of blood, urine and stool done along with ultrasound of abdomen. All these may give a proper cause and thus help for any additional management. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. T. Chandrakant, General Surgeon