Sending big hugs Kim. It is so tough. We had the same sort of experience with M's AS. It was uncontrolled for so long that she developed amplified pain syndrome.
She was in so much pain that she wasn't sleeping - would lie awake till 5 am in the morning. She was unable to go to school (missed a LOT of school in high school and withdrew 3 weeks into her first semester in college), unable to do stuff with her friends, unable to play sports (she had been a very active soccer player) -- she was pretty much debilitated by the pain and as she used to put it, she "didn't have a life," she had "a series of never-ending medical appointments."
You can imagine that we were both exhausted and desperate by the time we got to the pain program. But it really was life-changing for her.
We had spent YEARS working on her sleep - trying to get her to fall asleep on time and wake up on time. She just couldn't sleep, because of pain. We tried EVERYTHING - even addictive sleep medication.
After 3 days at the program, she was sleeping through the night and falling asleep in 20 minutes, instead of lying awake for 5-6 hours. No meds.
There are lots of other examples - she gained a lot of confidence, she learned how to cope with pain and how to use the tools she learned there to deal with pain once we got home. She was able to reduce her pain meds after the program.
The programs are really wonderful - they aim to teach the child AND the parent how to live WELL with chronic pain - how to enjoy life, despite the pain. M really learned a lot. And I also learned a lot.
Anyway, hope you can get her into a program ASAP. There are usually waiting lists, but the length depends on the center.
I know it sounds scary to be dealing with one more thing, but it's really actually GOOD news that Stelara is working for Caitlyn. Hang in there!