Lows in MCH & MCV usually indicate anemia, they are smaller then the average number and aren't carrying the oxygen they should to your cells, organs, etc. Combined with the high rdw this would most definitely indicate an anemia problem. Did you happen to get your iron saturation, iron serum, and ferritin numbers checked. With anemia usually the first thing to go is ferritin, iron serum, saturation, and then your hemoglobin and hematocrit will begin dipping. So it's really not surprising to have normal hemoglobin and hematocrit. The deficiency could be in the beginning stages. Does thalassemia run in your family? Start with the iron serum, saturation, and ferritin.
Just my 2 cents.
In my case I had low of everything but my hemoglobin and hematocrit are high, my Dr. will not get rid of the anemia diagnosis until my ferritin and iron serum are back to normal. If you haven't had these numbers checked you might want to.