Sarah Harding has given fans an update as she goes through cancer treatment, saying she is ‘fighting as hard as I possibly can’.The Girls Aloud star confirmed in August that is battling breast cancer, which has advanced to other areas of her body.The 39-year-old has been undergoing weekly chemotherapy sessions and has stayed off social media for the most part.Giving her first Twitter update since August, Sarah took to Twitter to reveal that she has been writing her life story while going through treatment.The Call The Shots singer tweeted: ‘Hi everyone.
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