DD (2.9) has had diarrhoea-full on, explosive up her back one since yesterday.
BUT it happened only twice yesterday, once in the morning today and now in the evening.
She had lots of fruit and juice yesterday. Today we went to a christening and they had a buffet with, among other healthy things that she wouldn't touch, popcorn and macaroons, of which she has helped herself to-many times 
So I'm wondering if it's more a case of an upset stomach due to the fruit, sweets etc than virus. No fever, no vomitting, perky.
I really need her to go to the nursery tomorrow, but obviously will not send her if it's a virus.
I guess no one can diagnose her over the net, but WDYT? I would ask the nursery in the morning anyway, I guess.