My 6 year son often complains about acute stomach ache. He even vomits when he is in pain. He has completed his antibiotics course for the same, around 3 to 4 times in the past 8 months. I've got his deworming done too, but still no relief. His usg was also done that stated minor swollen lymph nodes. But the pain is unbearable. Suggest what could be the possible reasons for it. Moreover, if any other test I should get done. I'm really worried for him. please help.