Please read the following.

I do think you should do this experiment, however. But be advised that B6 in the serum of the blood does not reflect accurately when high. It is the B6 in the cells that matters.

When blood is drawn sometimes red cells burst...creating false (factitious) highs. This is very common with potassium readings as well.

http://neurotalk.psychcentral.com/thread30724.html

http://neurotalk.psychcentral.com/sh...ght=vitamin+B6

This paper demonstrates that some people may have elevated levels when taking NO supplements:
http://www.ncbi.nlm.nih.gov/pubmed/16494569

What it suggests is the the conversion of pyridoxine to it's active form pyridoxal, is impaired, hence the pyridoxine accumulates.

B6 unlike some other B vitamins is stored in muscle tissue.
http://books.google.com/books?id=rXS...muscle&f=false

Also lab ranges were not developed on subjects taking vitamins.
Hence interpreting them is difficult and often not accurate.
If you are concerned, I'd get a better test with better results from Spectracell. The link is in one of the links I gave in this post.

So the bottom line? Do the experiment and stop supplements. Sit down and read your labels and see how much you actually consume. But you may find this is not going to impact you. Had it been a cause you would have had symptoms before your injury. Stay away from heat and hot tubs to allow healing of the
nerves.

In the past the actual patients with B6 damage took 500mg a day or more. Very few people do this today. (that was an old
treatment protocol for PMS in women).