Many thanks for all your replies, they all help. I found it very interesting what Maribou said about there being a link with thryoid problems as I am on medication for an underactive thryoid. I have always made sure that both my daughter and son have been tested for this condition. My daughter did follow the GI diet and is generally a very healthy eater but she still finds it difficult to lose any weight. I suspect if she gave up alcohol for a while it would help, not that she is a heavy drinker but does like to go out! She hasnt had a boyfriend for a couple of years and i think she is reluctant to let any one near because of the hair problem. She doesnt live at home and can get touchy if I ask too much how she is. However she is quite sensible and I can only hope she is happy. I think that is all we want for our children.