in 1998 i was diagnosed TB of SI joint and I was put on ATT for 1.5 years, pain remains after that for 3-4 years but for last 5 years no pain is there. Last month pain erupted and when I visited my doctor he diagnosed it as Ankylosis spondalitis. Iam totaly confused

Summarized question: Having suffered SI joint TB, what could recent diagnosis of Ankylosing spondylitis indicate?