In the heartbreaking letter, Cahill’s mother said that they shared the same father. The mother detailed the years of abuse she had suffered at the hands of her father, Raymond.

Cahill, who was raised by her divorced grandmother Juanita because her mother developed psychosis due to the abuse, took the news very hard.

The shock and disgust of the sudden discovery, led Cahill to attempt to commit suicide and then to suffer from anorexia.

She suddenly understood why her mother had such a hard time being around her as she was a constant reminded of the horrific abuse.

Cahill was in and out of the hospital due to her anorexia. She was fed from a tube for about four months. She finally made a full recovery after a few failed attempts.

Cahill said that she decided to share her story in an attempt to help other people suffering from anorexia.