My husband and my mother both suffer from back problems. (I've been lucky... knock on wood
)
My husband has been undergoing treatment by a chiropractor for some time. It helped at first - but several months later, it stopped helping. He had to see a doctor, go for an x-ray, and he may yet have to have an MRI.
If your back pain isn't that incapacitating, a chiropractor might do the trick. S/he will also give you some back exercises to do. But if the pain continues, go to a doctor.
Hope you feel better soon.