We adopted a cat from the animal services three days ago, but she hasn't been eating, drinking, or defecating, and we haven't really seen her sleeping either. Her pupils are almost always wide open, her ears are pointed and facing outwards, her tail is stuck to her body and she stays huddled up. She's probably very stressed out, nervous, and scared. If we just as much as look at her she'll get scared. It's really frustrating because all we can do at the moment is to leave her alone and soothe her with gentle words... It's been three days so I'm starting to get worried about her health. Should we consider taking her to the vet for an infusion if she won't eat tomorrow? Or should I keep her at home and wait for her to start eating since a trip to the vet might be too stressful? I've got no clue about her weight since I haven't even touched her yet.