Girls, what doctor should I see? My back hurts. It's like when my legs…

Girls, what doctor should I see? My back hurts. It's like when my legs get swollen, but it's just my back. It hurts when you run your hand over it, but not always. I don't think it's from anesthesia, maybe because I lift my son? Does anyone have this? Maybe massage? By the way, my spine has been hurting for a long time, but hush hush there are no diagnoses, scoliosis too.