It is wise to have it checked out. Several types of scans are available. Yes, possible alternatives. Physical therapy is tried 1 st . Therapy may include traction and stabilizing exercise.
Some injections can help.
Some newer techniques have come out. Laser can also be used. I can't make specific recommendations, but may give some info. Often, this type of pain is from stiffness of muscles or spinal joints. Stretching is often used to help.