The Princess of Wales has revealed she is undergoing treatment for cancer in an emotional video message and told others battling the disease “you are not alone”. Credit: BBC Studios Get more London Live: Check out our website: http://www.LondonLive.co.uk/ Like London Live: https://www.facebook.com/LondonLive/ Follow London Live: https://twitter.com/LondonLive/ Follow London Live: https://www.instagram.com/LondonLive