Hi, Welcome to health care magic, After going through your query,this right side abdominal pain can be irritable bowel syndrome or might appendicitis or uncommonly inflammatory bowel disease like chron s disease or ulcerative colitis but needs to be evaluated further by clinical examination and relevant investigations. You should undergo routine blood works, stool investigations with ultrasound of abdomen and upper GI scopy later on Treatment is mainly based on the underlying cause but symptomatic treatment can be taken like antibiotics, anti-inflammatory or probiotics or prebiotics fpr your diarrhea treatment temporally. Consult gastroenterologist for further advise. Thanks and regards,