"I can't walk for a long period of time without resting. I cannot run. No superhero roles for me. Stairs? I can do them but they're not the easiest. When I walk, I have to think about every single step, which is annoying and frustrating."



According to the National Multiple Sclerosis Society, MS "is an unpredictable, often disabling disease of the central nervous system that disrupts the flow of information within the brain, and between the brain and body."

Jamie-Lynn said working after "The Sopranos" entailed trying to cover up her illness. "Sometimes all I needed was like five or 10 minutes to sit and recharge but I wouldn't ask, because I didn't want them to be suspicious."



She told People she has tried multiple MS medications, including injections and infusions, and she now takes Tecfidera twice a day, saying that has kept her symptoms stable for the past six years. Things are "manageable now," Jamie-Lynn said. "It takes a fighting attitude to deal with all this. This disease can absolutely take over your life if you let it."



The new issue of People has more on the actress's diagnosis, plus photos from her recent wedding. Best of luck to her as she continues to manage her MS.



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