Claire Richards still worries about what people think of her. The 44-year-old singer – who has battled eating disorders and seen her weight fluctuate between a size eight and a 20 in the past – says that while she is still concerned by negative comments, such worries are “more fleeting” than they were when she was younger and in the spotlight. When asked if she is happier than ever, she replied: “I think so. When I hit 40, my outlook changed. I am not 20 any more. “When I was 20, I hated the way I looked and I was starving myself to look that way. “I still worry about what I look like and what…