The Princess of Wales has announced she is in the early stages of treatment for cancer. In a video today, the royal said the last few months had been “incredibly tough”. The princess was admitted to hospital for abdominal surgery on January 16 and at the time her condition was thought to be non-cancerous but tests after the successful operation found cancer, the type of which has not been disclosed. The future Queen began a course of “preventative chemotherapy” late in February but is said to have a positive mindset for her recovery and is in good spirits, describing herself as “well and getti…