No, it's not another strange hobby. No Mustelids have been deployed or harmed in the production of this post.
According to the consultant at yesterday's out-patient consultation, my key bloods are now well into the "normal" range:
- Hb: 148 (normal range: 130-180 g/L)
- Platelets: 185 (normal range: 140–400 (× 109 cells/L))
- Whites: 5.9 (normal range: 4–11 (× 109 cells/L))
- Newts: 3.5 (normal range: 1.5–7.5 (× 109 cells/L))
However, he said that my ferritin level is "a little high". He also said that it's a common thing that they often see in people who are in remission from AML, it's a consequence of them messing with my bloods so much during the treatment.
So, this raises two questions...
1: If it is common and if it was expected, why has this not been explained to me at all during the previous nine months?
2: How is a level of 1675 × 10-6 g/L classed as "a little high" when the "normal" range is 15-200 × 10-6 g/L (or 50-200 × 10-6 g/L depending on which lab is doing the tests)?
To get some sort of visual perspective, here's a graph of all of my ferritin readings currently available to me:
Feel free to do a trend analysis on that 
Anyway, the accepted wisdom is to reduce the ferritin level simply by bleeding me at regular intervals, I'm currently waiting for a series of appointments to attend a different hospital to spill my hard-won red stuff into a waste-bucket.
I might just get me a real ferret instead. From what I've experienced it will be just as efficient at drawing blood, it won't cost the NHS a penny, and it will have a much lower carbon-footprint than driving a diesel-powered tin box to Leicester and back several times during the coming months.
You need some good old-fashioned leeches, tried and tested over hundreds of years.
I see they are being used in India and there is a story about leeches in the NHS, but that was in the 'Socialist Review' so they may be referring to something different altogether.
@Glen - My blood would probably kill leeches - the medicinal ones and the spineless ones too!