Cats become slow when walking, sway and become unstable when walking, squat like a hen when lying down, and curl up with their limbs retracted. These are the postures of cats when they are uncomfortable. At this time, the owner should carefully observe whether the pet has symptoms such as fever, vomiting, diarrhea, loss of appetite, loss of energy, etc. If the cat is not in good condition, he should be sent to the doctor in time.