Herniated Disc?

I plan to see a doctor before starting an exercise program/stretches. The pain isn't off the charts yet, so I will give it another week or two, rest my back, use a heating pad, and hopefully the pain will go away. I think some of the problem may have to do with my weightlifting over the summer. I hit the weights really hard over the summer, and since late August, haven't touched them. I felt great during the summer, but ever since Ive been off the weights, my lower back has been acting up.