What is up with this back pain?!

What is up with this back pain?

So, Iv'e had back pain in my upper back near my spine and down. It started last night, and it is about a 6 on a 1-10 scale. It is usually centralized, and then it will move to a new area. It stopped last night when I layed on my back. I am also due for my period soon, but I thought that back pain only was lower when it was pms? So, it keeps coming back, and I just want to know what it is?

3 weeks ago
Now it's below my sholder blades....

Back Pain has so many causes, and manifest in so many different ways. Its difficult to pin point where the pain is when you say upper back near the spine. The spine runs from the base of your skull, neck, down to the top of your butt. If you are having pain between the shoulder blades, and this is something new, and it is relieved when you lay flat on your back, my bet would be that you strained the muscles in that area. If you have done some lifting and/or bending more that usual, it is likely that you have strained those muscles. Give it 2 or 3 days and don't stress that area and it should get better. If it does not ease up after a few days, its time to schedule a doctors visit. There are some pretty simple test that can identify the cause of the problem.