Christina Applegate attends the 26th Annual Screen Actors Guild Awards at The Shrine Auditorium on January 19, 2020 in Los Angeles, California.

Christina Applegate revealed she’s been diagnosed with multiple sclerosis.

The Married… with Children star announced the news in the wee hours today on Twitter, saying she received the news “a few months ago.”

49-year-old Applegate wrote, “Hi friends. A few months ago I was diagnosed with MS. It’s been a strange journey. But I have been so supported by people that I know who also have this condition. It’s been a tough road. But as we all know, the road keeps going. Unless some a–hole blocks it.”

“As one of my friends that has MS said  ‘we wake up and take the indicated action.’ And that’s what I do. So now I ask for privacy. As I go through this thing. Thank you xo,” she added in another tweet.

Applegate shares 10-year-old daughter Sadie with husband, musician Martyn LeNoble. She’s fought many health battles, including breast cancer, Page Six reports. Applegate underwent a double mastectomy in 2008 and had her ovaries and fallopian tubes removed in 2017 to avoid ovarian cancer.

Applegate’s The Sweetest Thing co-star Selma Blair also revealed that she was diagnosed with MS in 2018. Blair, also 49, has consistently updated fans on her fight against the autoimmune disease, on social media including her decision to shave her head after she found it too difficult to manage.

In 2019, Blair also candidly shared how she felt while undergoing treatment for the disease.

“Here’s a truth. I feel sick as all hell. I am vomiting and all the things which are not polite to speak of. My son ran away. From me. I have to get him to school. The medical treatments take their toll,” Blair began. “I am going to get through this. We do. This will pass. And to moms and dads who watch their kids sick on things we want them to take to get better… I hold you. So glad this is me and not my child.”