Well, the medicine helps some, but while stretching I reaggravated it pretty bad.
I was doing this stretch, and had my left leg crossed over my right and I was twisting my torso to the left while pushing my left leg to the right:
It really hurt on the left side of my lower back, right between the upper hips, on the left side of my spine.
I agree that when I stay away from twisting stuff and pulling too heavy, it is okay. So, I'll probably do that for a while. I'm moving over the next couple weeks so I'll probably hit the doc up again after I'm settled back in.