I am, completely unexpectedly, being given MMA & Homocysteine tests for possible Functional B12 Deficiency. I've just had a B12 injection so I arranged to have the tests in a fortnight's time so that I'm not full to the brim with B12! However, I don't know if I'm putting myself at some disadvantage with this quite close timeframe. Should I really arrange for the tests to be done immediately before my next injection (I have them every 4 weeks) so that I'm at my lowest ebb?
I know that with Functional Deficiency the whole problem is you are not using the B12 at a cellular level, but I obviously do use some of it as I always have less problems for the first 2-3 weeks after an injection. So if my Functional Deficiency is a 'milder' case (non-genetic, I'm guessing) would I really be better to get the samples taken right before my next injection, or will this really not matter? Is it a case that if I have the deficiency my MMA & Homocysteine will be elevated no matter when I've had an injection?
This is very anxiety-producing because when you are being given special one-off tests they are exactly that - you don't get another shot at them. I am desperate not to screw this up. So anyone who can throw some light on this, or give me good reliable advice on what to do here, would be welcomed with virtual hugs and virtual chocolate. Many thanks!