Hello! Thank you for the query. Sometimes an important event like a marriage is a huge stress (even if she does not realize it). Such stress in some cases can cause something called stress ulcer. The pain usually appears in the upper middle abdomen, aggravates after a meal, nausea and vomiting can be present. Stress can also cause other gastrointestinal issues as brain can control and affect to the intestines. SO she may have diarrhea or loose stools, constipation, bloating. However it may be also a coincidence and her pain is not related to the marriage. I suggest her to visit gastroenterologist and have some diagnostics. Hope this will help. Regards.