Hi Kevin, I had prediabetic neuropathy but my feet burned like hell, also had the sharp jabbing feelings as well.
I am good these days but it took a long time to heal completely.

I highly recommend R - lipoic acid 100 mg daily plus GLA [gamma-linolenic acid] 480 mg daily, it is found in evening primrose oil, and if your on metformin I would take B12 methylcobalamin daily as the metformin can deplete the b12 levels.

Try to keep your blood sugars as close to normal as possible, this is the most important thing but those supplements are also very good for diabetic neuropathy, it all takes time nerves heal very slowly.
best of luck to you.
Brian