Found this little gem - (well it is for me anyway)
"Too high an MCV (Mean Corpuscular Volume) points to hypothyroidism, B12 deficiency or folic acid deficiency, or drinking too much alcohol."
My MCV was 99.3 (in a range of 82 - 104)
Well my B12 was low and I drink too much alcohol. But anyway, this is yet another pointer towards a diagnosis !! x