Fakeclaim is a term that DIDiots came up with, it's to claim that someone is faking their illness. Not exactly sure why it's a flair on here.

The paralysis is related to a character from a film(?) called Newsies, there's a kid named Crutchie who can't use one of his legs or something so he needs crutches. This person is claiming that this character is their split personality and that when this personality is active they experience leg paralysis to match the movie. However somehow the supposed paralysis is on the wrong leg, so this person feels like a fraud.