Excessive hunger is characterized by the need for increased food intake above your usual caloric needs. It may be caused by disorders in the systems that regulate appetite and blood sugar or by circumstances such as pregnancy.
The signs and symptoms of fatigue and excessive hunger might be unexplained pain ,swollen lymph node ,sore throat,inability to concentrate,weakness,diarrhea ,dizzeness,...
Causes might be be attributed to endocrine conditions, hypoglycemia, or psychological factors.
Graves’ disease (type of hyperthyroidism excessive thyroid hormone production)
Hyperthyroidism (overactive thyroid)
Hypoglycemia (low blood sugar)
>>PSYCHOLOGICAL causes might be :
>>MEDICATIONS (including antianxiety medications, antidepressants, and steroids).
SO watch other symptoms accompanied or associated with the excessive feeling of hunger and fatigue ,other symptoms might tell much about the cause and give clue for the treatment or blood tests needed .
something to point to is do these symptoms comes out at the last 10 days before a period coming ,if yes ,then it might be a part of premenestual syndrome (pms)symptoms
Otherwise ,you can check with a doctor for further tests to figure the above related causes.