I have been taking Pred for over a year now in up and down doses. My GP is treating me for PMR but from reading peoples symptoms on this site, I don't have nearly the problems that most seem to. My main problem is with my ESR level which fluctuates quite considerably. I now wonder if I am developing GCA as getting odd feelings in my head in different places but nothing really serious. No persistent headache or problems with my eyes, or any of the other symptons I have read about. Can anyone tell me if the symptoms for GCA come on gradually over weeks etc or are they just suddenly there? Or is it that because I am already taking Pred I'm not getting all the symptoms. Awaiting another ESR result so will have to wait and see what the GP says this time. I'm wondering if its about time to see a specialist.