Girls Aloud reunion over the summer period.The singer is currently fighting breast cancer that has since spread to her spine, with fears that it could have also entered her brain, just less than a year after sharing her heartbreaking news.In order to treat her cancer, Sarah is undergoing a course of intense chemotherapy, as well as taking steroids.Due to the side effects of her treatment, Sarah has said that her eyelashes began to fall out and the drugs she has to take cause her to look "bloated".Sarah, 39, said she had hesitations about turning up at the reunion alongside Cheryl Tweedy, Nadine Coyle, Kimberley Walsh and Nicola Roberts who she said would be "looking fabulous and glamourous".In an extract of her autobiography, Hear Me Out,.
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