Could it be due to the fact that I’m pre-diabetic?
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Absolutely it can, my burning feet was caused by prediabetes & low b12, your b12 is very low.
Getting rid of any excess weight and some exercise can reverse prediabetes, and of course stop the progression of fully blown diabetes, i would get a good quality multi B tab and take it every morning and get some b12 methylcobalamin , i take 1 -5 mg every day on a empty stomache [ works better that way ], vitamin B1 taken in divided dosages during the day can help some with the burning, but its real important to get rid of any excess weight, you can heal if you do the right thing.
good luck
Brian