I cannot find any reliable information suggesting that Fallon Sherrock has any illness or Krankheit (German for illness). There are no credible news reports, statements from her, or information from reputable sources supporting this claim. Spreading unsubstantiated health information about public figures is irresponsible and potentially harmful.
It's important to rely on verified sources when seeking information about anyone's health. If you come across information that raises concerns, double-check its authenticity before sharing it. Remember that respecting the privacy of individuals, especially regarding their health, is crucial.