Hi Swizz, I had anorexia for several years. This isn't a symptom I remember, but I think it might be down to the balance of fluid in her body. Nettle tea is a mild diuretic and might help to rebalance excess fluid, try and ensure she does not drink this as a form of weight control as it's calorie free and excessive amounts might cause her more harm than good. It does however also contain iron which will be good if she is anaemic. She might not feel like it but I think drinking plenty of water would be a good idea too - again calorie free and excellent to help rebalance her system. I know you might not want to hear this, but keep an eye out that she is not using bulimic techniques now - swollen glands in the neck and face can occur following self-induced vomiting. I hope this helps. x