Your Spine doctor is guiding you in right direction. In my opinion you must go for MRI
of spine and check for nerve
compression and consult your doctor again. I think surgery is best treatment for you as all other measures fails in getting relief. Follow some instruction which can help you in getting some relief:
1. Use hard bed to sleep.
2. Avoid jerky movements of the spine.
3. Use LS belt while walking, driving and standing.
4. Keep your posture straight.
5. Do regular exercise and physiotherapy
as prescribed by your physiotherapist.
6. Do not lift weight.
Hope this will help you.