Notsohappy, there is some evidence that unusually high Vitamin B6 levels are a risk factor for sensory neuropathy though I don't know if this might apply to you.

The Recommended Dietary Allowance for it is 1-2 mg/day for adults and its Tolerable Upper Intake Level is 100 mg/day.

The more detailed information here might help you in this context Dietary Supplement Fact Sheet: Vitamin B6 — Health Professional Fact Sheet.