Hi, I have a 14 year old son, who has had the same illness three times since March last year. It starts with nausea for three or four days with stomach pains and no appetite - then he begins to be sick a little, mainly bile. The hole epsiode last for almost a week. Each time we don t know of any other sickness bugs around and neither my husband, my younger son or I have been sick either. I am a little concerned that it may not be a bug. I have also noticed that the whites of his eyes are more yellow than ours. I have visited my local GP who felt my sons tummy - but he did not want me to speak to him (as he felt my 14 year old son was old enough to talk for himself) so I don t feel he got the whole picture. My son is eating ok and seems well in himself again. But his eyes are still more yellow. kind regards Mrs kempton