Wow. That does really sound like Munchausen, which is just about impossible to treat if the person won't admit they have it. And it's tough because you don't want to reward that behavior by giving her the attention she wants, but at the same time if you ignore it, it will escalate. People with Munchausen can really hurt themselves.

Another thing to consider is hypochondria, where people actually HAVE the symptoms of an illness but it's psychological. They're not faking, they truly believe they're ill. The way you describe her talking about it, it sounds like Munchausen, but it could be something else. It would take a psychiatrist to say.