Does anyone else have this experience? DS, nearly 14, has been growing steadily for the last 2 years. But for the last 3 months ds keeps being unwell and having to be off school. As far as I know there is nothing worrying him at school or elsewhere. This last week ds hasn't had particular symptoms of anything but has been in bed all week saying he feels ill, tired etc. etc. It isn't like ds at all. Any ideas?