Last Fall, the bottom of my left foot started hurting. Shortly after that, the right foot joined in. Soon, both my legs were in pain, and my thighs were on fire, and I mean burning. My legs and feet would go from pain to fire, fire to pain, etc. My PCP sent me to a Rheumatologist, who told me I had Fibro. He put me on Lyrica, which calmed things down, but I still have very painful flareups. I take narcotics for neck and upper back pain. The Lyrica doesn't help the neck pain, and the narcotics don't help the Fibro pain.
My husband is a diabetic and suffers from neuropathy in his feet. He takes Lyrica for that, and it helps him a great deal. He describes the pain as fire as well. Good luck, and I hope you find relief soon.