A dog that is not eating, has a growling stomach and is not energetic may be caused by gastrointestinal disease, indigestion, internal parasites, or bacterial infection. You need to observe whether the dog has other symptoms. If the dog has no other symptoms If the dog has symptoms, you can feed some probiotics appropriately; if the dog does not improve within a day or has vomiting, diarrhea, blood in the stool, etc., it is best to send it to the pet hospital for examination and treatment in time to avoid delaying the condition.