text: i did't have appendicitis but i studyed about it; suppously, you feel a pain in the Right Lower Quadrant of your abdomen ( imagine your abdomen divided in 4 parts), maybe preceded by a pain that starts in the epigastrum followed by pain around umbilicus. That pain is characteristically sharp; you may have anorexia( don't want to eat), nausea, vomits, fever,etc...   It is quite common in the childhood ( 15 years old or younger), but may occur in adulthood. It is important that you go to your doctor when you experience those symptoms because  appendicitis has 4 stages ( focal, suppurative, gangrenose, perforated ), increasing the severity of the disease with the number; an appendicitis stage 4 is one that leads to peritonitis and spread the infection.  Is in that stage in which you don't experience pain at all and is very difficult to treat. The treatment includes  surgery, antibiotics, antiemetics, analgesics,...