Okay, so first and foremost, I'm sorry that I'm more of a lurker than a participant on this forum. I've posted a few times but I don't make an everyday thing of it. That being said, I'm wondering if someone can tell me what is physically happening to my body when I get a certain pain (in addition to all my other AS pains).
So, on my lower back, on the right and left side near the top of my hip bone (is this the SI joint?) is where the problem is. It's always stiff and has an overall achiness, but ocassionally, if I step or turn the wrong way I get an extremely sharp jab of pain, almost as if someone stabbed me with a knife. It hurt so bad the other day when it happened that I actually fell to the floor.
What is physically happening when I get this stab of pain?
Just curious; not that I can do anything about it. Thanks in advance.
