After my 2nd discectomy I had terrific burning pain that went bilat in buttocks to quads, to calves, thru legs to soles of feet... lasted quite a number of years but then again wasn't all that adequately managed back in the early 90's.
Since '98 I've been on Gabapentin (Neurontin) taking 1800mg/day and since 2001 I've been taking a small dose of Methadone daily which has totally quelled burning pain anywhere.
So I can't say that I have any idea what is causing your symptoms or what imaging needs to be done but drug wise if you've not already been recommended to try Lyrica, Topamax or Gabapentin there are some pharmaceutical choices to help with this type of pain if it's still there...
Please update us with how you're doing
