I start my AS at age of 17 and in early start pain in hip then it go up and knee. All my 20s struggling with pain. I diagnosed AS in 30 but doctor just diagnosed but not tell about AS. The. I go another doc where he explain me AS and tell what to do. with exercises stretch and physio therapy I feel much better. I feeling my conditions much better then my 20s. Now I m 33 and I can run play volleyball in 20s it my dream to run and play.