Despite her condition, she has built a career in showjumping, competing against both disabled and able-bodied riders.
Evie has also appeared on ITV's show 'Hidden Disabilities: What's The Truth?' and also met Prince Harry and Megan Markle when she won the Inspiration Young Person Award at a Well-child charity event in 2018.
Yet, she claims Dr Philip Mitchell is liable for a "wrong conception charge" after failing to advise her mother, Caroline Toombes, to take vital supplements before getting pregnant.
Evie says that if her mother's doctor advised her to take folic acid supplements, to reduce the chance of spina bifida affecting her baby, her mother would not have gotten pregnant and she would not have been born.
But Dr Mitchell denies the claims stating he provided Mrs Toombes with "reasonable advice".