Wilson Phillips alum Carnie Wilson is suffering from Bell's Palsy, a nerve disorder that causes paralysis of the muscles on one side of the face. "Just wanted you all 2 know that I have Bell's Palsy on lf side of face right now. Scary, unfortunate, but it goes away. A challenge!" she tweeted last week. The 44-year-old singer added that she's treating the condition with acupuncture, which seems to be improving her condition. Bell's Palsy has a variety of causes, including viruses and stress.