There are other conditions that can cause burning pain, especially in the feet and hands, so I would be asking for a referral to a decent neurologist and/or rheumatologist. In my experience, pain consultants don't seem to focus on diagnoses, at least not the ones I've met over here. I wish I had had one from them but it's less of a concern to them as just treating the symptoms and trying to push counselling is. I get the impression that it's not that way in the States though - I think that many docs over there are more motivated to keep trying. My cynical side says it's financially motivated, but it's true that the better docs over there have a larger repertoire of treatments and diagnostic avenues than are considered over here.