My friend is a male 31 years old, 5 6 , 145 lbs. he having extreme fatigue, sleeping 18 hours per day. Numbness on his right arm and side. Tingingly feet, lower legs, and abodominal pain. He can fall asleep at a stop light. He has had a general check and his blood is good, heart shows normal pressure. His doctor has told him that she cannot find anything wrong with him. Could it by a hidden disease such as Addisons or might it be a consealed heart condition?