This may be because the cat is shivering when it feels cold. Parents can touch the cat's foot pads to confirm whether it is cold. Keep warm in time. If it is not because of the cold, it may be that the cat is having a nightmare, or for other reasons. If the resulting shivering does not affect the cat's normal life, parents do not need to worry too much.

Tip:

We cannot explain many of the cat’s behaviors yet, so parents should not pay too much attention to these behaviors, as long as the cat is healthy.