If anyone had ever said to me that caring for someone with an eating disorder was excruciatingly challenging - I wouldn't have believed them. But it's true. Eating disorders are challenging, painfully challenging. Being thrust into the role of carer of a teenage son with anorexia is draining. No rest at all. Mind constantly switched on. Preparing to uncover yet another piece of evidence of the evil squatter's presence. I'm tired, so very, very tired.