Changes in appetite Stress can cause some cats to lose their appetite ... a tightly curled tail, or rapid tail flicking. Dilated pupils or wide eyes If your cat’s eyes look unusually large ...

Cat behaviorist Amanda Campion says: "Creating a calm and stress-free environment is key ... Always watch their body language; any tail flicking, ear flattening, or skin twitching are signs ...

A sudden sight, sound, or movement can trigger a cat to instinctively puff up. Cats can get startled by anything that appears out of nowhere, perhaps a shadow, a dust bunny, an approaching dog, or, ...