Can you elaborate on that? It's interesting, because when I had appendicitis, I had just a bit of pain (which didn't go away overnight) but nothing serious. When I got to the hospital, the doctor who triaged me touched my abdomen for a few seconds and he was like 'prep this guy up'.
We were taught several tests to do in this case, and immediately refer the patient to the ER if they are positive. From the memory, soreness/pain on the right side of the abdomen if the left side is pressured, and soreness/pain increasing when the pressure is removed. And some cases can apparently be palpitated directly, but I forgot what exactly it should feel like.
The ER couldn't believe that I didn't need and pain meds. I felt nearly fine and was even hungry - apparently I shouldn't have been.
After the scan they said my appendix was huge. Easy surgery.
In hindsight, I'm sure it was acting up when I was backpacking, but I won that battle. Good thing, because I was in the middle of nowhere.
I could not eat for a day when it happened to me. I threw up everything I ate. That’s why my parents suspected some food-borne pathogen initially. I could not feel any pain besides the cramps at that point. We went straight to the ER in the morning when I was in such a pain that I could not put the right foot on the ground. It was indeed an appendicitis but it was apparently still far from rupturing, so it was not quite the last minute. But my goodness was it painful.