(Gray News) - Actress Christina Applegate revealed on her podcast that she was misdiagnosed with multiple sclerosis."This may come as great news, but to me .... I'm back at square one," Applegate said on her podcast "MeSsy."Applegate returned Tuesday to the podcast, which she co-hosts with actress Jamie Lynn Sigler.

During the two-part return, she tearfully recounted how a doctor recently told her that she did not have multiple sclerosis, also known as MS. FILE - Christina Applegate appears at the Annual Backstage at the Geffen Gala in Los Angeles on March 22, 2010.(Matt Sayles | AP Photo/Matt Sayles, File)"She said, 'Congratulations, you don't have MS,'" Applegate said through tears.

"I was like, not happy at all. Everybody else was so happy ... You don't get misdiagnosed and then all of sudden I'm better ... I haven't gotten better, Jamie. If anything, I've gotten worse in some ways. And so, I'm back at square one. That I don't know what's going on with me."The Mayo Clinic described multiple sclerosis as a disease that "causes breakdown of the protective covering of nerves." Symptoms of MS include numbness, weakness, trouble walking, vision loss and a lack of coordination.