Iron deficiency can present with this picture. Hemochromatosis typically would have an elevated ferritin level, not a low one.
Obtaining a colonoscopy to evaluate for any sources of GI bleeding can be considered. However, with a non-revealing CBC, this is less likely.
You can also obtain a hematology consult, and have a peripheral smear looked at under a microscope.
These options can be discussed with your personal physician.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.