Stomach pain and gas. 3. 10 years old.

My daughter suffers from stomach pain almost everyday. It's mostly before she passes gas or passing stools. This has been going on for more than 6 months. Although the frequency reduces or increases, she complains of pain at least once everyday. If I rub her belly, she passes gas and feels better. On some days that doesn't help either. Her stools are normal. Some days she goes less. Am giving her fibogel 1 teaspoon every night for the last two weeks. I have IBS and a known doctor said it could be the same with her. We took an ultrasound a couple of years back and things were normal. Haven't taken one recently though. She tries to squat when she has pain sometimes. I feel very helpless and am not able to do much. She's otherwise very active, there's no blood in stools, no irregularity in stools, no urine issues, nothing. She eats an egg, a banana and spinach almost everyday apart from regular food. She eats all veg and only home cooked food. Her weight is 20 kg and she's 3.10 years old.