I've been deal with AS since my 20's back in the 70's. It didn't get real bad until my 50's. Severe pain from hips to neck. I sucked it up until I couldn't take it anymore. My Doctor told me I could retire 10 years before I did. I actually liked working. But, it got too bad. I don't know how old you are but, it seems like if you just told your Doc exactly what you said in this post, he would have to write up a diagnosis & any future problems that will occur. AS will never go away. All you can do is make it bearable. I have an infusion every 8 weeks for almost 10 years now. It has given me most of my life back. You must keep your spine flexible!! I didn't & it fused. I didn't listen to the Doc. Finally, I would say be honest with yourself, your employer & mostly your Doc. Hope the best for you. Stay safe and kind. Peace.