It's been a little more than a decade since Jamie Lynn Sigler publicly revealed she was diagnosed with multiple sclerosis in her early 20s. Her only regret is not sharing her truth sooner. "What struck me the most was the outpouring of support from the MS community," Sigler recalls to Us Weekly during a late March Zoom call. "I realized, 'Oh, I have robbed myself of this tribe, of these people who see me. And I'm not alone anymore.'" At 44, the Sopranos actress is doing better than she imagined possible.