I watched a programme late last night presenting three cases of mystery illnesses and resolutions. For one person, who had had unexplained vertigo for her whole adult life, they showed what it felt like for her when she went into a supermarket.
It was exactly what happened to me when I first became B12 deficient !
They called it "Supermarket syndrome" - a term which makes it sound like a fairly common occurrence, although I've never heard it mentioned before.
I just Googled it - and found mention of all the things I found most difficult: supermarket aisles and continual turning of head (food on supermarket shelves, cooking at home), peripheral movements (especially traffic but also people), fast action on cinema screen, unexpected movements (ceiling-fixed clothes racks, springy floorboarding)- all throwing my balance off-kilter and giving me dizziness, nausea, confusion, tiredness. Even turning over in bed with eyes shut.
No mention that I could find relating this to B12 deficiency though, which is a shame. There must be a reason why the brain can no longer do the work and visual compensation is required ?
Anyone else recognise themselves ?
Rectifying the problem seemed to involve a lot of retraining of the brain by introducing a simulation of these situations in milder form, gradually and frequently.
Mine has either rectified itself over time, or the frequent B12 injections have done the job.