I wasn't even aware I was ingesting B6, I was just taking the tablets for the magnesium (it was one of the few with the full 440mg dose I was recommended).

Blood tests since then have shown that my B6 levels are fine with my usual diet, I don't take multivitamins or supplements anymore.

I don't know much about B6 beyond my own experiences with it, so all I can say is make sure you've discussed it with your GP, and be aware of the coasting effect if you do happen to develop any neuropathic symptoms: https://en.wikipedia.org/wiki/Megavitamin-B6_syndrome