My doctor said I had slighty high hemoglobin from a normal blood test what dose this mean?

A little high but. Any lab test can be a little higher or lower than normal and this may or may not mean anything. It depends on the overall of a person, any meds they take, & the presence or absence of any symptoms A lab value alone, without any other information can't tell us much. Sometimes hemoglobin is elevated when a person is a little dehydrated, for example, but is normal after a patient drinks more water.