Suggest Cause And Treatment For Increased Iron In The Blood

I have too much iron in my blood but after a definitive blood test for haemochromatosis, the test came back negative. Asking my doctor what is the next step, he says there isn t one. Surely, if I have too much iron in my blood, & it is not haemochromatosis, there must be a solution? I had 2 previous tests for the iron levels & they both came back positive.