What are the symptoms of appendicitis?

Need doctor to check: Lower right abdominal pain can be from many things. For pain there, appendicitis is always a concern (pain worsens over time, with fever coming on). Other possible causes of pain include... if one is constipated for several days, stool can back up all the way to the right side. Having gas may or may not be related to such discomfort (lactose intolerance causes gas). A hernia, etc., can cause pain.