 [ Symptoms ] my daughter is hemoglobin is low but her iron is high doctor thinks they are fighting each other [ Disease ] most helpful answer chronic fatigue along with diabetes and depression can play a big role in your problems also the medications that you maybe on could also be a factor i have got ibsd cfs fibromyalgia herniated disc gerd ddepression sleep apnea vitamin deficiencies 2nd to ibsd and many other health problems i have periods where i can sleep anywhere from 48 72 hrs straight i used to take provigil when i worked graveyards when i have spoke to my doctor about this he looks at me as if i am either crazy or lying have you tried any meds for this