My kitten is 10 weeks old. He is very active and normal. He is prancing around, playing, purring, and his personality has not changed at all. However, he has very very soft stools, sometimes diarrhea, and I just noticed now that he has blood on his rectum and the fur around it. He seems healthy otherwise though and is not hiding or lethargic or anything. I am very worried about him. What could be going on? He just came to my home 4 days ago, so could it just be the change in environment? His stools were normal the day he came home, and he's getting the same food he had at his old home. I tried to make a vet visit but they dont have any appointments for 2 weeks. Should I take him to an emergency vet hospital?