Re: Appendix Pain
This wouldn't be an unheard story for an appendicitis ... odds are it's likely some gastritis/gastroenteritis/enteritis combo. It couldn't hurt to get checked out ... if it were my kid and the symptoms were gettin' worse, I would ... janewhite1 is describing the peritoneal sign, which in reality means that if you have an appendicitis, the inflammation of your appendix can affect the nearby peritoneal(aka abdominal wall lining) and create the pain phenomenon she/he described ... what is also concerning, is that the appendix sits(for most people) on top of the right psoas muscle(which is a big muscle in your back(approximately), but if you have and appendicitis, you can get inflammation of that muscle which can radiated to the R leg although more often the pain is felt in your back
but like others said, if your pain continues to worsen, I would get it checked out, just know that there are cases of appendicitis where when the appendix ruptures, the pain goes away and patients feel better for a short time before getting really sick ...
heck, you could even have epiploic appendagitis ... what is it ... you don't really need to know, if you want, you can look it up online ... but it requires little intervention and would be better than having an appendicitis