Hi... I have just read through your question. Whatever you are describing is called
Chronic Pain Abdomen in medical terms.
The differential diagnosis of
abdominal pain in children varies with age, gender, genetic predisposition, nutritional exposure and many environmental factors. The causes are many including -
constipation / acid peptic disorders / inflammatory bowel disorders /
irritable bowel syndrome / worm infestation etc.
I suggest that you do this test and get back to us -
CBC, ESR, CRP, Fecal Calprotectin,
Ultrasound abdomen.
You can approach me at the following link.
Once the page opens there will be an option below my image as – ASK ME A QUESTION – click on it.
Please find the link below -
www.healthcaremagic.com/doctors/dr-sumanth-amperayani/67696
Regards - Dr. Sumanth