DS is 4.5 and there's been a bug going round his nursery. He has a temp (not excessively high) which is helped by Calpol and he was sick once last night but not since then. He's had diarrhoea a few times and in the last lot there was a tiny streak of bright red blood. Common sense would suggest to me that it must just be a bug as the other kids in his class have had similar and that your bowels are bound to be a bit 'overworked' with diarrhoea so the odd bit of blood is perfectly explainable? But the NHS website and a few other places say that a child needs to see the GP with blood in their stools. Would you take him soemwhere today (he really doesn't seem well enough to go) or just see how he is tomorrow?