Go read Robin's Blog.

For those of you (all 2 of you) who don't know, my sister-in-law had surgery today. They thought she had a huge cyst on her right ovary. Turns out her ovary is fine. She actually had a ruptured appendix that had walled itself off from the rest of her body. My brother says it only happens in 1 out of 252,000 patients. Go read her blog for more details.