Hi Katyi - It is good to hear from you again. And glad to know you are "settling in" in PA. Have you found someone to do soft tissue work on you? 

I cannot remember anyone reporting that they had been diagnosed with AS. Nor have I read anything that would indicate that AS is misdiagnosed as PS. Although the diagnosis of PS is often an "iffy" situation, so I suppose it is possible.

I find it very interesting that your SI joints hurt but they appear to be normal. (Meaning the pelvic bones is correctly positioned?) If that is the case, then AS would explain the pain.  I will be most interested if your AS test results are positive. Please stay in touch, Mary