By Kelly-Ann Mills The Princess of Wales’ medical treatment started in earnest in January as she underwent major abdominal surgery, Kensington Palace has confirmed. Mum-of-three Kate said in her bombshell statement on Friday evening that at that stage both she and her doctors did not believe she had cancer and her operation was deemed a success. We now know that the future queen does have cancer. In a recorded message, Kate told the world: “In January, I underwent major abdominal surgery in London and at the time, it was thought that my condition was non-cancerous. The surgery was successful. …