Severe sudden abdominal pain and nausea? pain is right below ribs on right side, going down towards hip. hurts with deep breath. hurts if pressed.

ER can evaluate: If one has very uncomfortable tummy pain, and is normally in good health, plus is not pregnant, the possibilities include: appendicitis (usually has fever), gall stones, kidney stone (very painful), constipation (crampy), stomach flu, twisted bowel, arterial problem, etc... Adults with moderate or severe pain need a doctor's evaluation to look for appendicitis and other surgical emergencies.