Hi Dear, Welcome to HCM. Understanding your concern. As per your query you have symptoms of lower abdominal pain and back pain . Well there can be many reasons for symptoms you mention in query like consuming foods known to cause gas in some people, such as milk products that contain lactose, broccoli , appendicitis , crohn’s disease, gastroenteritis or urinary tract infection. Need not to worry. You should take plenty of fluids and take anapas for pain . I would suggest you to avoid above mentioned foods , eat light and non spicy specially at night , take light walk after every meal , eat small and frequent meals. Drink warm water , apply warm compresses on abdomen and back and take ibuprofen or acetaminophen for pain . If condition doesn t get well then consult gastroenterologist for proper examination . Doctor may order ultrasound , endoscopy along with stool test . Doctor may prescribe laxative , anti inflammatory along with antacids . Doctor may also refer you to urologist for problem like UTI. Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari