1. Excitement: Chihuahuas are small dogs with a lot of energy, and they often get excited when they see their owners or other people they know. This can lead to shaking and panting, which is usually harmless.
2. Fear: Chihuahuas can also shake and pant when they are afraid. This can happen when they are around strangers, other animals, or loud noises.
3. Pain: Shaking and panting can also be a sign that a chihuahua is in pain. This can be due to a variety of medical conditions, such as injuries, infections, or dental problems.
4. Heatstroke: Chihuahuas are small dogs with a lot of fur, which makes them more susceptible to heatstroke. If a chihuahua is exposed to high temperatures, they can start to shake and pant as a way to cool down.
If your chihuahua is shaking and panting, it is important to determine the cause so that you can take the appropriate action. If you are not sure what is causing the shaking and panting, it is always best to take your chihuahua to the vet to rule out any medical problems.