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.
Approximately three hours after eating a complete meal, you should feel hungry. It may occur even sooner if you're eating five to six smaller meals a day. If you don't, it may be for one of the reasons below. 1  Low blood sugar from not eating properly.2  You might feel tired, irritable, lightheaded or jittery, and you don't recognize these feelings as hunger.t may occur even sooner if you're eating five to six smaller meals a day. If you don't, it may be for one of the reasons below. 1  Low blood sugar from not eating properly. 2  You might feel tired, irritable, lightheaded or jittery, and you don't recognize these feelings as hunger.