<s>[INST] Took my daughter in because we believe she was having constipation and possibly threw up bowel. The er dr thought it might be an appendicitis. Ultrasound couldn't find her appendix. We came home and she had a little bit of lunch and within a minute, she was having the pain in her side again and having diarrhea. Could this be appendicitis and should I have had them do a ct scan? [/INST] go ahead and do the ct scan its better to be safe. Otherwise if it comes back negative..take her to a gastro doctor may need a scope to look, or a stool test. </s>