At the age of 30 Chambers was diagnosed with an eating disorder, a combination of bulimia and anorexia nervosa. She explained, "I just didn't feel myself and I knew that something wasn't right [...] It wasn't an image thing for me ... It wasn't 'Oh I look fat in photos'. It was more about the control thing." She was treated by a psychologist and "MammaMia"s Jessie Stephens, observed, "she recognises the importance of accepting that it might be a bad day, or a bad week, and negativity is a vital part of living a balanced life. Pushing it away can lead to anxieties manifesting in a different, more debilitating way."