We picked up new 11 week old puppy yesterday morning. She was a rescue and had been in the shelter with her siblings about 3 weeks (mum not with them). Since coming home she has been listless, sleepy, hardly wants to play. Yesterday she would eat nothing at all (I offered identical food to what the shelter had been giving), was getting worried she would starve so this morning I gave her a few bits of well cooked chicken by hand which she did eat. Today she has had runny poo and I saw some blood in there. Messaged shelter, they weren't very helpful other than to say she 'seemed healthy' when she was with them. She has been supervised/in her crate the whole time so I don't think she can have eaten anything bad or harmed herself since yesterday. Experienced owners: is this an emergency vet appointment or not yet? She did eat a bit of puppy pate this evening and hasn't vomited or anything else.