I have the same neuropathy issues as you. Numbness in my feet, especially my toes. Can't bend my toes. Spasms and tingling are almost constant. Mine appears to be genetic as my mother, grandmother, brothers, uncles and cousins have similar symptoms. I went to a doctor at Stony Brook Neurology who's specialty is peripheral neuropathy last Monday and had a genetics test done. Simple saliva test, much like the Ancestry and Hereditary tests you've probably heard about. Results should be back in two weeks. The doctor suspects CMT or HSN but also tested me for MS, Parkinsons and ALS. She doesn't suspect those conditions but wants to rule them out. She said this test will show if any genes known to cause periphrtal neuropathy have mutated. She also wants to do a MRI of my neck. She said that peripherals neuropathy of the lower extremities can sometimes be caused by a pinched nerve in the neck. She mentioned C1/C2 so I assume that's the lowest disk in your neck. But she wants to wait for the results of the resgenetics test before going to plan B given my family history.