My daughter since 1pm sunday has been heavly sick 7 times in the day and night and has filled at least 6 nappies with diahorrea. I cant get her to eat or drink but she will try breastmilk but it comes out very soon. She is very sleepy and very in active .I remember she had diahorrea once and the doctor said it was a virus and she be fine. Im really worried how long should I leave it before phoning doctor. There is no rash just to add.