The Blood Machine Hungers ... and other life changes

So the other day I had my yearly opticians appointment and as part of that they blinded me with a machine that supposedly images the back of your eyeball. The photos they took, very tasteful subdued and flattering, of the back of my eyeballs showed a bit of bleeding. So I had to go to an ophthalmologist to check it. They took more pictures after blinding me this time with eye drops and confirmed there was something there.
So I was then required to go down stairs and get one of my arms drained of blood for "testing" purposes.