who only by moving can balance

I don't know which B vitamins you mean (possibly all), but the following applies to folic acid and B12: there is something called the MTFHR gene, in which about 10% of people have a mutation that makes us unable to metabolize those vitamins from food or supplements at all. I recently found out I'm one of the lucky 10%, and I'd never heard of this before in my life so I thought I'd mention it. There's also a large percentage of people who have a heterozygous version (the 10% is people with it as homozygeous) that reduces their ability to metabolize B vitamins (and possibly some other vitamins) though they can still get some benefit out of supplements.

For me, I have to take L-methylfolate (in the US, anyway, there's a prescription version that's expensive, and an OTC version that may or may not be as good, I'm not sure) for sure, which is what people with a working MTFHR gene turn folic acid into; I also inferred that it might be a good idea to take methylcobalamin (what people with a working MTFHR gene turn B12 into) given that my B12 levels also were low. (My psychiatrist was the one who clued me in -- she knew I was thinking about getting pregnant so obviously folic acid is important, but also, it turns out that for people on antidepressants and certain other mental health meds, not having enough bioavailable B vitamins makes it impossible for the meds to work right.) It's always hard to isolate one variable, but I've noticed a significant increase in my quality of mood and energy level since I started taking those two supplements.

FWIW, as of this year, my folic acid and B12 levels came back low but not *disastrously* low, before I went on the supplements. My Vitamin D was also borderline-low even though I've been supplementing that for a while.

Sorry if this is old info to you; if it's not, though, asking about getting tested might be worth it. here's one page I found about doing so in the UK (warning: a lot of the pages about MTFHR are pretty breathless and quacky but I think the issue is real despite the people out there who will attribute everything short of a broken toe to it.)