hes not vomiting and i wouldnt say he has diarrhoea as its not just as runny, it has mucas and blood through it, thats how i know he has it again as hes had it before and vet said once a dog gets it once it can flare up again witch they neglected to tell me until today when he got it again, hes on dry red mills but now im having to change it to sensitive food, hes fine apart from not drinking water and im scared he will become dehydrated..