Hello Jake,
Well, I could go weeks without the pain and then it suddenly appears and lasts about 5 days. In the morning I feel great and as the day goes on the pain appears, gets worse, and sometimes it feels like it's throbbing. My doctor said it is referred pain from the stomache. But I am questioning that b/c when I go to the chiropractor, that area of spine, T5 is out and possibly in spasm. He adjusts it and in a couple days it is gone. I know my posture isn't good, I tend to have my head forward a lot and I also lean over the counter to look at the computer during the day. Also, I know for a fact that my right shoulder is higher than the left. Seem to hold stress in that area.
So I really don't know if it is skeletal or coming from my stomache. Today I have the pain under my left rib but so far no pain in the middle of my back.
I'm hoping to get an endoscopy to see if I have an ulcer.