There are many reasons for the above symptoms of dogs.
First of all, considering the causes of indigestion and other diseases, it is recommended to feed an appropriate amount of enzyme drugs that promote digestion. You can provide a proper amount of pet probiotics. We recommended feeding easy-to-digest foods.
Second, consider the early symptoms of gastrointestinal infections. Generally, the condition will get worse over time, with vomiting and diarrhea.
It is recommended to consult a veterinarian in time.