Just wanted to sympathise with you...I'm only 20 years old, about to start my second year at university. I have schuermann's (sp?) disease, herniated thoracic disc, mild scoliosis and a rotated pelvis, problems since I too was 12, but only diagnosed when I was 18. None of these are severe enough to have anything done to them by themselves, but added together I am constant pain. When I saw my registrar last and I asked him what to do, he said it was just pain, so cope with it. I then contacted his supervisor (the consultant) and she at least sorted out my medication and gave the registrar a bit of a talking to, although nothing can be done apart from medication (although I am going to try acupuncture). Problem is, the anti-inflammatories have wrecked my digestive system, so i'm now on another waiting list to see a gastro-enterologist and am without any anti-inflammatories at all, aie!
I am trying to get onto a pain management course, where they teach you how to manage your pain, appropriately! They teach things like how to sit down and get up, and how to get in and out of bed to minimise the pain, basically coping strategies, they work on the emotional side of it too. My friend has a completely wrecked back and pelvis from a car accident, and it's improved her quality of life remarkably.
The point i'm trying to say is that I understand about having several things wrong and everyone saying that they're not very bad and there's nothing worth treating, all the while being in sometimes vomit-inducing pain...The thing to do is to take control and force the doctor to understand, it's your pain and so they can't tell you that it's not that bad because if they had pain like that they probably wouldn't be able to be a doctor!
Hope it all goes well for you