Hi Marts14
I too had ankylosing spondylitis diagnosed when 20 and applied for my PR Visa aged 28. I had my medical and told the doctor assessing about my AS and that it hasn't really affected me too much in continuing to play sport and an active job. He did a few extra flexibility tests on me than my wife during her medical but it didnt pose a problem at all and we both got passed through (tests of which were very easy like try touch your toes and look left and right etc. Unless you are stiff as a board, i don't think it will be worth worrying about) . I am sure also that if you can run two marathons, which is two more than i could do, i think you will be fine. With you not having taken any major medication, then this is very favorable. I was taking Humira at the time which is very expensive and still passed. The doctor explained to me that he used to specialise in AS which is a coincidence and he said it isn't a contagious or life threatening disease, and many can manage the condition well throughout their life so it is not something which should fail your medical. The doctors do an assessment and then send it off to Brisbane. He said he would be very surprised if i failed and if so he would call them and explain that AS is not a condition which should result in a medical fail.
I hope this goes some way to putting your mind at ease and if you have any other questiosn please feel free to ask. I am also friends with rickcuzza who also had a similar experience to me and passed fine with AS.
Unfortunately i think you have to pay for visa application up front but i am confident that given your set of circumstances, you should pass. Maybe give the medical assessment place a call prior to ask questions regarding AS and chances of passing to put your mind at ease before going ahead.
Best of luck with your medical and visa applications.
