Thanks for writing in.
I don't mean to scare you,but I think it would be best if your sister could have a surgical opinion as soon as possible. Is there any associated vomiting
, fever or abdominal distension ? It could be anything ranging from appendicitis
, intestinal obstruction
etc to plain indigestion
. Please visit the doctor as soon as possible. After a physical examination and necessary investigations, the doctor might be able to come to a diagnosis.
Hope I have answered your questions.Feel free to ask any further questions you might have.
Hope your sister feels better soon.