How common is it for a dog to get Diarrhea with blood after he has gone a couple of times. He is still eating fairly normal but this is the second time he has gotten diarrhea out of no where. Also we had just mopped the floors earlier that day. Is pinesol bad for dogs, do the fumes make them sick and if so how long before they are better or will i always have to take him to the vet for this.???