Anxiety is one of the most common causes of shaking in cats. Cats can become anxious for a variety of reasons, such as changes in their environment or unfamiliar people.
If your cat is shaking and you think they may be in pain, it is important to see a vet right away. Pain can be caused by a variety of things, such as injuries or infections.
A fever can also cause cats to shake. If your cat has a fever, they may also be lethargic, have a decreased appetite, or seem uncomfortable.
Hypoglycemia, or low blood sugar, can also cause cats to shake. Hypoglycemia is most common in kittens, but it can also occur in adult cats.
Epilepsy is a neurological disorder that can cause cats to shake. Cats with epilepsy may have seizures, which are episodes of uncontrolled muscle jerking.
Some medications can cause cats to shake as a side effect.
In some cases, cats may shake simply because they are cold or excited. This is usually nothing to worry about and will go away on its own.