TikTok star Rachel Yaffe posted a heartbreaking video before her tragic death at the age of 27 on October 11. The Maryland-based star shared her final social media post filled with gratitude for her life in September, discussing her radiation therapy. Rachel has been documenting her cancer treatment after she was diagnosed aged 20 with fibrolamellar hepatocellular carcinoma - a rare form of liver cancer that affects around 200 people per year. The social media star was updating followers on her