The vitamin "B".... consists of several different ones.

B12 and B6 are very different. So with your testing...what
were the numbers for B12, and B6 separately?

Most people do not need really high doses of B6. However when B12 is used orally high dose is needed because not much is absorbed each time.

B12 has no upper limit of safety, which means there is no toxic amount known yet.

B6 is different, too much is not good, and too little also not good, because both limits can give neuropathic symptoms.

If you were prescribed Vit D on RX ? That is D2 and does not work (we know this from current studies). The OTC D3 does work and dose depends on the number you had from your test.
Calculated from that value, the dose of D3 is 1000IU per 10 pts in US figures, needed to raise per day.

Many doctors are poorly trained in treating vitamin deficiencies.
They do not interpret results well, and often don't treat effectively. So get your test results and post here, on the main board PN section, not this thread, and we will see exactly where you are at.