Thank you for posting your medical query to DoctorSpring.com
I can understand that you are in a significant amount of pain but further details would help me asses whether the pain is muscular or bony in origin:
1) what is your age and gender?
2) did you experience any trauma to the lower back? even if that includes lifting heavy weight?
3)can you rate the pain on a scale of 1 to 10 with 10 being unbearable pain? have you tried any pain medications which have helped?
4)does the pain move anywhere? like down your legs? do you have any other symptoms?
Low back pain can be from a variety of causes: from a kidney stone or disc prolapse or nerve compression or any cause which narrows the spinal column. At the very least you will need a lumbar X-Ray and an MRI to determine the cause for your back pain.
Hope this helps, i look forward to your reply,