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It is possible she has a stomach infection
which will cause gas sensation also. Does she have vomiting
and loose motion
. She needs to be on diet of fresh fruits and vegetables along with nutritious diet. no junk food. Give her proper amount of fluids. She can avoid spicy, hot, hard food. Let her have cool food like yoghurt, curds. If she gets more pain or loose stools, vomiting you can get her to a Hospital to get her examined and tested for food poisoning
, bowel infection. Let her take rest now.