I've got my own secrets... and they're pretty strange

Cherry, a 14 year old girl, was born the wrong year. It's not actually that she was born on the wrong year, it just meant that her life would be thrown into a spiraling crash throughout her teenage years. The reason for this is simple. The zombie apocalypse begin in the year 2029.
Her parents were the first of small, outcast sort of town, to be infected with the mind twisting, stomach rottening, flesh eating disease. The first zombies of the small town.
Instantly, they turned on each other, ripping the flesh from each others bodies. The high pitched screams and muffled gurgles that sent everyone, on a global scale, to scream and run when they heard it, belonged to her parents, and her parents alone.
After escaping from her diseased parents, and figuring out how to survive off the land, she spends her time traveling to different areas, looking for survivers, though she feared meeting them due to a secret she held.
Her body was different than others......