Hello Aussie (love your avatar),

Well, I will talk about my case...

Im 26... and have OA !!!
How I "discovered" ? because BOTH of my wrists were killing me... terrible pain... I tried "everything" for common pain... ice, creams, pills... nothing... then, my feet... ouch, hurt too... So, went to doc... After he listened how my bones had a horrible noise everytime I/he moved them, he told me I had OA....

He gave Celebrex (Celecoxib) 200 mg/day which I took for about 8 moths more or less... I stopped. And Im pain free. (I mean, OA pain free.. have some other issues that give me pain... )

Good luck !

P.S Glucosamine sulfate helped me too.