You'd think, after all this time, that I'd be an expert on this disease. However I think I've learned a new thing. It seems from what Dr Google says that morning stiffness is a symptom of osteoarthritis. Fair enough. I honestly can't remember when I haven't had morning stiffness, at least not since childhood. I've also assumed that the all day stiffness I have is a manifestation of OA as it it's not like the debilitating pain of full-blown PMR. This stiffness did go away during early days on pred - all my aches and pains vanished, and only some of them have returned. But Dr Google implies that only prolonged periods of rest, like sleeping, will lead to OA stiffness, which resolves within half an hour.
So the question is: should I be concerned about this ongoing stiffness? I didn't call PMR pain stiffness - it was restriction of range of motion caused by pain. Which for months I thought was caused by lack of fitness and kept driving myself to exercise more, which of course didn't help at all.
For a long time it seemed very clear to me what was PMR and what was OA, but now I wonder if some of what I've called OA is really PMR? Trouble is, I can't remember what life was like before PMR. I think it took so long to get diagnosed partly because as I sickened it was a seamless development of a condition I've had most of my adult life.