Am I right in thinking CLL will produce mature cells (right shift) and AML produces immature cells (left shift)? If so, and I have left shift cells, shouldn't I see a blood doctor quite quickly? Also I'm quite symptomatic and have been for about 5 months. My GP has said I may have CLL. I've had 4 FBC in the last 2 months all with TWCC OF 14. GP is monitoring me.