Natalie Cole's sisters reveal she suffered in private: 'She didn't want to draw attention to herself'

While the world was shocked when Natalie Cole, passed away on December 31, the legendary singer’s sisters, Timolin andCasey Cole, told Entertainment Tonight that their sister suffered in private.

Nicole, who died of congestive heartfailure, battled health issues for years, including Hepatitis C for which sheunderwent a kidney transplant back in 2009. Casey admitted to ET that the “Unforgettable”singer did not want to draw attention to herself, adding that her sister treasured herprivacy.

Timolin, Natalie and Casey Cole Photo: Getty Images

Casey said, "[Natalie] was veryprotective of her family and her close friends, and I don't think that shewanted people to start feeling sorry for her. She really thought and prayedthat she would overcome this."

The family knew this last Christmaswould be their final one together. "When we came to the hospital and spentChristmas Eve with her it was a godsend," Timolin revealed. "We were veryblessed and thankful to spend that very special day with her that she loved. Itwas her favorite time of year."

Robert and his late mother Natalie Cole Photo: Getty Images

According to Timolin, Natalie’s 38-year-old son, RobertYancy is having a “hard time" with his mother's passing. She revealed he was “veryclose” to his late mom, so “it’s going to be a process.”

Following her death, Natalie's son and sisters released a statement reading, "Natalie fought a fierce, courageous battle, dying how she lived ... with dignity, strength and honor. Our beloved Mother and sister will be greatly missed and remain UNFORGETTABLE in our hearts forever."