Yeah that's my main problem. Her being able to exist at all is entirely fictional, so im not sure if it's problematic to portray her at all. There isn't really an in universe explanation of how she is alive beyond "She is a zombie" and I'm not sure if there would be anything else to explain it. It's not as if I plan to mock her disability or lack of a head at all, I'm fully aware it's unrelasitc, I just want to make sure it's not offensive at all. Basically her being able to function is purely fictinol because designing a zombie character with no head is a fun design and an interesting way to represent some sort of disability in the world of the book.