I thought i had SFN

In clinic today. Talked with neurologist. Blood draw done. Waiting. Told him I do keto ten years. He thinks I need to eat veggies. Says my liver is having trouble processing all the fat and protein. He says my insulin is elevated like I have prediabetes. My a1c is 5.6 I say due too not sleeping. But all my neuropathy symptoms are like that of a diabetic. I'm having a hard time with this. Trying not to be fat and get diabetes has almost given me diabetes?