It is likely that the cat is convulsing due to fright or pain. In this case, the owner needs to give the cat sufficient comfort and attention, and at the same time observe whether the cat has other abnormal symptoms, such as vomiting, diarrhea, difficulty breathing, etc. If your cat's symptoms persist or worsen, seek medical attention promptly.

In addition, the cat's twitching may also be caused by brain injury or nerve damage. If a cat develops symptoms such as convulsions, coma, or dilated pupils after a fall, it may have suffered severe brain damage and needs to be sent to the hospital immediately for professional treatment.