United Kingdom, July 31 -- Christina Applegate was devastated when her daughter told her she misses "who you were before you got sick".

The 53-year-old actress - who was diagnosed with multiple sclerosis in 2021 - admitted it was "like a knife to the heart" when her 14-year-old daughter Sadie shared how difficult she finds it coping with her mother's illness.

Speaking on the Let's Talk Off Camera with Kelly Ripa podcast, Christina said: "I don't get up in the morning with that, I get up because of her. She's the reason I'm still here and trying."

"But she did say to me, and we got into a big thing the other day, and sorry Sadie, but it has to be said. She said, 'I missed who you were before you got sick'. That is just like a knife to t...