* Barking or whining excessively when you leave
* Destructive behaviors, such as chewing or scratching furniture
* Following you around the house
* Trying to escape
* Urinating or defecating in the house
Illness: If your chihuahua is suddenly crying and trembling, it could be a sign of an illness. Some possible causes of illness include:
* Pain
* Fever
* Infection
* Injury
* Poisoning
Fear or anxiety: Chihuahuas can also become fearful or anxious in certain situations, such as meeting new people, being in new places, or hearing loud noises. If your chihuahua is crying and trembling in a specific situation, it may be experiencing fear or anxiety.
If your chihuahua is crying and trembling, it is important to determine the cause so that you can provide appropriate care. If you are not sure what is causing your chihuahua's behavior, it is best to consult with a veterinarian.