I think it's just how she tells it. She feels she is a person with a type of inner language that is not word based. She feels this is her true nature. Language has made her start forgetting her native language. I can see how that is distressing. Imagine you move from your English spoken culture into a different one, you learn their language, and your own starts to fade, your sense of connection to what you feel is home starts to fade. You would feel distressed. There are no good options. Either be a stranger to your surroundings or compromise with who you are deep down.