This week is Pernicious anaemia/Vitamin B12 deficiency awareness week.
I'd never heard of this condition until I was diagnosed with it a couple of years ago. With hindsight we reckon I'd probably been suffering with it for 10 or 15 years before that.
If you're tired & irritable most of the time, having trouble with remembering things & concentrating, it may not be just because you're getting old! Especially if you're also getting numbness & tingling in your extremities, mouth ulcers, swollen tongue, nerve problems or a whole raft of other things.
You know the old cliche about vegetarians not having any energy? That's because B12 comes mostly from meat & dairy products. Pernicious anaemia means your antibodies are killing off the little bugs in your gut that help you process the B12.
To put it into perspective 'pernicious' means 'deadly', it can kill you if left untreated. A simple blood test will spot it.