I've been somewhat suspicious about lower spine issues causing my PN and several MRI's between 2015 and 2019 did reveal issues but, not to the point of causing the numbness in lower legs and feet, told by two top level neurosurgeons. I have zero pain. Yet, in 2019, University of PA suggested steroid shots. Went to pain management doctor at local hospital and had steroid injections (3 a month apart) resulting in less numbness, increase in feeling and improved walking gait and better balance which lasted about 5 days after each shot. This "test" was being done to determine if L-3 to S-1 had nerve issues causing the PN. Surgery? Nope. If I just touch lower back area, immediately I get increased feeling.... tingle in feet and toes and that exists today. My neuro doc just scratches her head as did the doctor at Johns Hopkins. In last 3 years, I feel my peripheral nervous system is now hyper-sensitive and it all started in L-4 to S-1 area. I am glad that surgery is out, but doctors can't figure out why I have the degree of sensitivity. Add it to the list of symptoms with no answers.