There are many reasons why a cat's paws might tremble. For example, if a cat is overly tired, it may become very fatigued after engaging in a lot of activity or exercise, which could cause its paws to tremble. Additionally, when a cat is nervous or anxious, its muscles become very tense, which can also lead to trembling paws.

If we observe that a cat's paws and feet are frequently trembling, and this is accompanied by other abnormal symptoms, such as refusal to eat or lack of energy, it is best to consult a veterinarian immediately to ensure that the cat receives appropriate treatment and pain relief.