I'm glad it worked for you but usually appendicitis is caused by an infection which will cause sepsis if the appendix ruptures, and fasting won't fix that. If you think you have appendicitis at least talk to a doctor, because if it ruptures there is a high probability you will get sepsis and die.
Waiting cures a wide range of problems, that don't end up killing you.
It's really hard to separate 'doing a rain dance' and 'just waiting' when you have a sample size of 1.
And the ones who do die, don't post here to let us know how it turned out.
I hate that the healthcare situation actually forced you to flip a coin for your life. :(
(I'm assuming you're in the US or somewhere like it where an appendix removal isn't free)