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.
Visit your doctor if you find yourself continuously reaching for a snack. Photo Credit nito100/iStock/Getty Images. If you have severe hunger pains after eating, it may be a sign that something is not quite right. While certain medical conditions such as ulcers and uncontrolled diabetes can cause you to feel this way, sometimes the hunger is caused by irregular eating habits, drugs or other medical conditions.