My 5 year old kid is having hiccups frequently for a past two months. once in a week or ten days. sometimes after brushing,sometimes after eating. He has two to three times in a day when hiccups comes. Consulted paediatric gastro and he suggested probiotics for 8 weeks. can hiccups be the only symptom of gastro problem in children. why does it happens suddenly. do I need to take any tests or how long does it takes to cure