The average dog sleeps for about 12 to 14 hours per 24-hour cycle. Thatâs just the beginning, though. Puppies, who expend a lot of energy exploring and learning may need as much as 18 to 20 hours.
Although individual differences exist, the list below can provide some common hunger symptoms: 1  Feeling of emptiness in stomach. 2  Gurgling, rumbling or growling in stomach. 3  Dizziness, faintness or light-headedness. 4  Headache. Irritability, easily agitated.  Lack of 1  concentration. Nausea.
However, the most common symptoms include: 1  Nausea or recurrent upset stomach. 2  Abdominal bloating. 3  Abdominal pain. 4  Vomiting. Indigestion.  Burning or gnawing feeling in the stomach between meals or at 1  night. Hiccups.  Loss of 1  appetite. Vomiting blood or coffee ground-like material.  Black, tarry stools.