You are being treated for heartburn or hiatal hernia, and you feel sudden chest or stomach pain, have difficulty swallowing, are vomiting, or are unable to have a bowel movement or pass gas; you may have a hernia that has become obstructed or strangulated, which are emergencies.
One strong possibility for your symptom is gall bladder stones and cholesterol deposits within the gall bladder which can cause sharp pain. Getting an ultrasound of the upper abdomen done in a walk in clinic or the ER will confirm the diagnosis.
Upper abdominal pain. Biliary disease: Cholecystitis (inflammation of the gall bladder) and gall stones typically cause pain in the right upper quadrant of the abdomen. The pain can be recurrent in nature and be related to food ingestion. Patients may complain of nausea, vomiting, and anorexia in addition to the pain;