Posted October 24, 200717 yr Sugababe Keisha Buchanan has revealed that she is planning to have a hernia operation in the near future. The singer also claimed that she is currently struggling with the stresses of the promotional aspect of her job. Buchanan told the Daily Star: "I have a hernia that I am going to have operated on soon. "I get so stressed I can’t look at our itinerary as I get flustered and worry. I worry how I’m going to pose in pictures, what I’m going to say in interviews. I never know what we are doing." She added: "I can’t cope with it. Everyone tells me not to worry but I can’t help it. That’s just how I am." Digitalspy.com