Tylerlybb your symptoms sound familiar. Get a 2nd or 3rd opinion if needed - only you know the pain you are experiencing. There is a statistically bias against being diagnosed AS after 45 or even 40. But being HLA-B27positive does make it more likely. Unless your pain is isolated to the location of supposed malformation, I would go back to the doctor for further testing.
There was absolutely no way my pain a year ago was isolated to my hip and "osteoarthritis" at 43. A congental malformation and AS are not mutually exclusive - you can have both.
I had 2 MRI's done one month apart. The first showed stenosis in the lower back and on the second the doctor didn't see it. Also the first didn't confirm AS either. In the second it was a split decision - the local doctor didn't see it but on the same MRI the clinical trial doctors did. At the early stages an AS diagnosis can be subjective.
It is not normal to not be able to sleep at night because of pain and stiffness. In the US you have to fail a few NSAIDs before doctors can put you on TNF blockers if you are non-radiographic. If you are on an NSAID and the nighttime pain and stiffness are not resolved, consider switching to new drugs - you may have to push your doctor. Sleep is very important in improving your health for inflammatory conditions.
Request an MRI specifically to determine AS - it looks for inflammation in the sacrum. It can confirm it, but doesn't rule it out if inflammation doesn't show up.
Consider requesting a sleep study. I'm not certain of all the repurcussions, but I believe inflammatory marker like TNFa are significantly increased with issues like sleep apnea.
Each time you go to the doctor, you have a story to tell and only a short time to tell it. You may want to have a list handy the next time you go. Make sure you impress on your doctor how much each symptom impacts your quality of life. Until you resolve or improve your pain and fatigue, I would not be satisfied with diagnosis or therapy.
The biologic TNF blockers like Humira, Cimzia, etc. are capable of putting this disease into remission. Don't be shy about inquiring about them, it's never to early to ask questions. Even if the MRI, blood tests do not confirm AS you could still be nr-AxSpA (non-radiographic Axial Spondyloarthritis). If you get a diagnosis of a Spondyloarthropathy a positive response to treatment with a TNF blocker could confirm a correct diagnosis. Most importantly don't let the expense of the biologic drugs deter you or make you feel that you are a burden. They are stupidly expensive, but you should be able to find a way to get access. The cost should have zero impact on you expressing interest in them or your doctor determining you need them; guilt free!
FYI, every time i see my rheumitologist he makes a comment that he is still suspicous of my DX. So it goes. I'm only three weeks into Cimzia on second loading does and no response yet, may be a bit worse (but I've been very stressed at work). I'm pretty down on the whole pain thing right now and concerned the TNF blocker isn't going to work. Then what? - everything about my pain profile and symptems fit AS to a T - excluding the NR, B27-, seronegative and age.
I still feel like I fail coming out of every doctors visit. I fail to mention something or am too timid to ask questions about other diagnostic possibilities. I have a half-assed Dx and a real treatment for now, but still in pain and limbo.