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.
Fatigue and loss of appetite are symptoms of several health conditions. The condition can be as common as the flu or be a sign of something more serious like cancer. Often a loss of appetite can cause fatigue, especially if you arenât getting enough calories or nutrients. Chronic, or long-term, pain, can also interfere with your appetite and cause fatigue.