USG is not a good investigation for bowel related diseases. If you could please provide more details about your pain like location, any aggravating or decreasing factor, does it migrate or radiate to another location? How's your bowel habit? is urine clear ? How's the appetite? Any nausea vomiting?
Next Steps
see a Surgeon/Gastroenterologist, might require a CECT whole abdomen with oral and IV contrast
Health Tips
take small, frequent meals. chew the food well. avoid oily, spicy food items