Christina Applegate's friends are reportedly fearing the worst as she continues to live with multiple sclerosis.

The Married… With Children actress, 54, was reportedly admitted to hospital in Los Angeles last month, though it remains unclear whether the visit was directly related to her diagnosis of multiple sclerosis, which she disclosed in August 2021.

Christina, known for her roles in a string of television and film projects including Married… With Children, has spoken publicly about the condition through interviews and her podcast, MesSy, which she co-hosts with Jamie-Lynn Sigler.

A source told the Daily Mail: "With every setback, if we are being realistic, everyone has it in the back of their minds that they might not have a tomorrow with her."

The insider added: "Christina is a fighter, but her battle with MS has been treacherous. She has better days and really bad days - she doesn't have great days. She's always dealing with something. It sucks."

The source continued: "But when she does look at things positively it makes her feel better in the moment because she has so many friends that are there for her, even to listen to her, cry with her and anything in between."

When contacted by Page Six, a representative for Christina declined to confirm details of her apparent hospitalisation.

The spokesperson said: "I have no comment on whether she is in the hospital or what her medical treatments are. She's had a long history of complicated medical conditions that she has been refreshingly open about, as evidenced in her memoir and on her podcast."

Christina shares a daughter, Sadie LeNoble, 13, with her husband Martyn LeNoble, 56.

She has previously spoken about the physical impact of her condition.

In February, she told People she had been spending extended periods in bed due to pain, while continuing to care for her daughter.

She said: "I want to take her - it's my favourite thing to do. It's the only time we have together by ourselves."

Christina also said: "I tell myself, 'Just get her there safely and get home so you can get back into bed'. And that's what I do."

On an August 2025 episode of MesSy, Christina described a previous hospital visit prompted by severe pain.

She said she had been "screaming" and felt as though "my appendix is bursting".

Christina added doctors later told her she had a kidney infection that had spread to her other kidney.