Yolanda Hadid had days where she "didn't want to live anymore" after being diagnosed with Lyme disease.

Yolanda Hadid

Yolanda Hadid

The 'Real Housewives of Beverly Hills' star discovered she has the illness - which can affect the skin, joints, heart, and nervous system - in 2012 and admitted that it was only her three children, Gigi, 20, Bella, 19, and Anwar, 16, who kept her going.

Speaking on 'The Dr Oz Show', she said: "My children [are] what kept me alive. I remember just waiting for them to get out of school, just to give them a hug and look at them for hope. They're the ones that kept me fighting and wanting to live. There were many days that I really didn't want to live anymore. But when you look at your children, it's not a choice anymore. You have to get through, you have to keep fighting and searching to get well."

However, she admitted that her disease, which Anwar and Bella have also been diagnosed with, had forced all of her children to grow up too soon.

She said: "It made them grow up all of a sudden, a lot faster. There were nights where Gigi, at three o'clock in the morning, had to drive me to the emergency room because I had such severe inflammation in my brain that I'd be balling on the floor like, 'Please take me to the hospital!' So you know, and not just Gigi driving, Anwar and Bella in the back of the car and the three of us going to the hospital. They learned to take charge and...be my strength."

Yolanda, 52, also blamed the disease for the breakdown of her marriage to music producer David Foster, 66.

She explained: "At the end of the day, David never changed, I changed. Unfortunately, these are the cards that life dealt me. It wasn't by choice. But I'm not the woman I used to be and I probably will never be again. My focus, my energy goes to trying to get well, trying to make a difference, trying to find a cure for my children ... and David's life is really traveling, going to concerts, loud music. And I mean, I couldn't, I can barely listen to the radio."