I've had persistently high MCV and high MCH for as long as I've been tested. Not super high, I think, but high. No doctor seems to be concerned about this, but I wonder -- why? What does it mean? Taking massive doses (or medium doses, or low doses) of B-12 doesn't fix it MCV: between 100 and 110 in the past year and increasing MCH: not very high -- between 33 (high end of normal) and 35.6 Can anybody explain what these test results mean? Is this normal for ME, or is it my own little weirdness?