Christina Applegate's daughter Sadie LeNoble is navigating her own health struggles.
Amid the Dead to Me actress' journey with multiple sclerosis (MS), her 13-year-old daughter has been diagnosed with Postural Orthostatic Tachycardia Syndrome, also known as POTS, which can cause symptoms such as fast heart rate, dizziness and fatigue when transitioning from sitting or lying down to standing up.
"When I stand up, I get really, really dizzy and like my legs get really weak and I feel like I'm going to pass out," Sadie explained on the June 25 episode of her mom's MeSsy podcast." And I have fainted before and I have gone unconscious, but that doesn't usually happen."
And while the diagnosis has presented certain challenges for the teen—especially while at school—it has also helped her better understand her mom's struggles.
"I feel like if I didn't have this thing, it would be a lot harder to understand what my mom's going through," Sadie, whose dad is Christina's ex-husband Martyn LeNoble, shared. "When my mom's like, 'Oh, I'm in pain right now. Oh, I'm having tremors.' If I didn't have this, I probably would be like, 'I don't know what you're talking about.' But I have tremors from POTS."
She added, "It's definitely a lot easier to understand what she's going through when I have something I'm going through as well."
Since the 52-year-old was diagnosed with MS in 2021, their lives have drastically changed.
"Every night, I remember when I was a kid, we would dance and everything in her room for like hours at a time," Sadie said. "When she got diagnosed it kind of just felt like—not like everything was over, but it was hard seeing my mom lose a lot of the abilities she used to have in my childhood."
And for Christina, her inability to do some tasks she used to do for Sadie has been difficult.
"When I do say I'm having a bad day," she said to Sadie, "I always feel incredibly guilty about having to say that because I don't ever want you to feel that I'm not capable to be your protector, your mother. I love you. I want to make you food. I want to bring it to you. I want to do all the things. And I do when I can. And I feel incredibly guilty when I can't."
Though the Married With Children star added, "But you're always pretty darn cool about it, kid."
Keep reading for a look at Christina's health journey.