Magic, as I understand it, many people with AS have scoliosis to some degree or other. They found mine when they x-rayed me back in 1991 or so. I have slight scoliosis to the right at the base of my spine. But I don't think scoliosis can cause AS.
Is there no way the school can help make this easier on you? I hate the thought of you trying to make your way around campus with your ribs hurting like that.

Warm hugs,