i have a new rottweiler puppy and she has got diarrhoea. i have tried to starve her for 12 hours and she seemed ok. her faeces were returning to normal, but then she had a lapse and has got diarrhoea just as bad again. ive tried chicken and rice, what else can i give her to settle her stomach? she is very bright and is not lethargic and when she eats, she eats the whole bowl of food, she is still very playful and seems to be ok apart from the diarrhoea. i have noticed a small amount of blood in her faeces and also mucus, could this be caused by worms? please help!