You should call your healthcare provider if you experience:

·       Back pain with fever.

·       Bowel or bladder control issues.

·       Leg weakness or pain that moves from your back down your legs.

·       Pain that worsens, causes nausea or sleeplessness or interferes with daily activities.

Source: https://my.clevelandclinic.org/health/articles/10040-spine-structure-and-function