Hi, I was exercising the other day and was standing up and leaning from side to side essentially doing side crunches. Well the next day my middle back was killing me like I bruised my spine. It hurts to the touch and when I sit down or lay on the floor and try to stretch my back out, I feel a weird feeling, like a pressure on my spine in that area. Do you think I just over-did it, or does it sound like I really hurt something?
Definitely it seems that you have suffered from some sprain of the vertebrae due to some improper movement of the vertebrae during exercise, not necessarily excessive exercise.