pain
I find that the more active I become, the more things ache for awhile! For me, at least, I think it is mostly the years of barely moving, and getting the muscles used to working again! I also find, that as the weight shifts from different parts of my body, it puts stress in unusual places. I have never really had any back problems, but at 100 pounds off, alot of my weight has shifted to the front, and I have some lower back pain.
If it continues, probably best to check with your doc.
Jeri H.