Thank you for the wait.
First of all, I found a great web site that is called "Pain.com". It is all about pain, and pain clinics. It has information for you about what you might expect at a pain clinic, but even more than that it has exercises you can do, and there is a place to talk to others going through similar issues.
This is the main "home" page: http://www.pain.com/
There is a lot of use of traditional pain relief techniques, such as medication, but they also have a link to alternative methods of treating pain, which is good, I think.
Next, you were wondering about what to say to the doctor. It is always good to just get a pen and paper and write down your own questions and what you hope to know. It is also good to make a clear list of your past history, perhaps year by year of month by month, but don't over-do it and add too much detail, but you can also write things down once and then go back and condense it, or pick the main points.
Of course write a list of your medications, and be sure to put the name, dosage, how many per day you take, and the times.
Then, here is another list that may be helpful for you to review regarding things to ask the doctor: http://www.medicinenet.com/script/main/art.asp?articlekey=13683
This is another list of things to ask a doctor that might be helpful for you in preparation:
Another list that you can print out and write on if you prefer:
Tell me what you think about these ideas,whether I am on track or not with what you need, and also, if you need me to review anything I'd be more than happy.
I'll look to see if you reply and need help with anything, again, I will be happy to further assist you with this.