Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.
1. Since you have mentioned that the child is 3 year old, certain factors have to be excluded at his age are:
i. Is he swallowing too much air [eating large meals, drinking carbonated beverages]?
ii. Any sort of emotional
stress [parental/marital disharmony]?
PS. Excitement is present in history, this could be an aggravating factor since any of the above factors can cause irritation to the diaphragm.
2. Since you have taken an ENT opinion, make sure to exclude any systemic cause of the same [if any] by consulting a
Pediatrician to look out for any disorders of the stomach,
esophagus [reflux disease] or bowel disease, till then:
- try giving him smaller but more frequent meals [avoid overfeeding].
- make sure to feed him in an upright position.
-try gripe water
Hope I have answered your query. Let me know if I can assist you further.