When your animal companion is not acting or feeling right, the best course of action is always to take them to medical professional- A Veterinarian whom you trust. Just as with a child, you want to get your companion checked out thoroughly to find out what is wrong. The difference with an animal companion versus a child (besides the obvious species difference!) is that the animal companion is not understood. They cannot tell us in words what they are feeling.
I was blessed to have the opportunity to speak with a beautiful horse the other day, regarding her illness. Without knowing too much information prior, the horse was able to tell me very specific areas of her body and what it felt like to her. In relaying these messages, the human confirmed the veterinarians diagnosis. So now, the question the human had was "Where did it start?".
I asked the horse what specific area began to hurt first, or if not pain, a feeling of dis-ease. She was very clear about her front hoof. I relayed this message to her human, and the hoof will be more carefully looked at- specifically under the shoe. Sometimes, the underlying cause is hidden even from experts. If there isn't an obvious injury, the root cause can be missed.
The care of our companions goes well beyond feeding, watering, and providing a warm place to sleep. There are physical and emotional needs as well. Animal communication is great way to better understand what those needs are, and will provide a better relationship between you and your companion.
At the end of our session, this beautiful horse asked me to sing to her before she went to sleep. She was very specific about song too! So, I took several minutes to mentally sing her song and send love and hugs and healing. It is always a beautiful experience when communicating with our animal friends.