good morning. >> reporter: we know chandra wilson as dr.on "grey's anatomy," but when her daughter started having debilitating abdominal pain, the real-life momma had to crack a real-life medical mystery. this one wasn't solved in an episode. it took nearly a year of tests. the worst part, she said, not knowing what this mystery disease was. >> this tumor is dangerous. complicated and smart. >> reporter: for 13 seasons on abc's hit show, "grey's anatomy," chandra wilson's character, dr. miranda bailey, has saved lives and solved the toughest of medical mysteries. >> this job was made for me. >> reporter: but this morning the five-time emmy nominated actress is opening up about a real-life mystery illness affecting her 23-year-old daughter sarina. it's one she couldn't treat with tv magic. >> it presented itself like a real bad case of food poisoning and it didn't go away for about four or five days so because of that we went to the e.r. >> reporter: we caught up with chandra on the set of "grey's anatomy." so, does the tv doctor in you at t