My I ask did you get a QSART test/Sweat test to rule out autonomic neuropathy? Reason why I ask is because that is another cause of sensory neuropathy symptoms. My docs were awesome informing me of this and exhausted all the possible causes.
I've just ended a 2 year journey of countless test with fast progressing symptoms that kept my Neurologists on there toes as I kept them up to date on changes. But in the end with all my MRI's, CT's, blood test (Vitamin/Antibody/Protein function/Glucose etc), EMG (large nerve/Muscle function/back involvement), and Skin Biopsy (Nerve & sweat gland Health/counts) was normal. The only test that wasn't was my QSART test (tests the electrical current in the nerves.) which resulted Autonomic Small Fiber Neuropathy. I suffer with fast progressing (Not Normal) sensory neuropathy like symptoms amongst multiple other weird symptoms. For me the weird symptoms started first until this past summer when I started with pins/needles/pain in both feet then it crawled up my legs in sections, to my hands, up my arms, still going. But everyone is different. I've been on gabapentin which doesn't work for me at all. I feel everything. As of now I'm on the med increase roll a coaster to pain free. Fingers crossed. I shared my sweat test failed photo. You can see a smidgit of electrical activity on 1 or 2 of them but pretty much flat line.
I hope you find out what the problem is soon.