Most probably from your symptoms it looks that you are having sciatic pain in left lower limb with back pain and since you are on medication since one month then I would advise you to an MRI OF LS SPINE WITH SCREENING OF WHOLE SPINE
X RAY LS SPINE AP AND LATERAL AND LATERAL VIEW IN FLEXION AND EXTENSION
X RAY PBH WITH FEMUR AP view
Next Steps
MEANWHILE IF YOU ARE NOT ALLERGIC TO ANY MEDICATION THEN
PLEASE TAKE
1) Tab Myospaz forte twice daily after food for 15 days
2) Tab macpanta once daily before food 15 days
3) Tab Gabapentin 100 mgs twice daily after food for 6 weeks
If any problem please message me or call me on my number
Health Tips
Do not lift any heavy weight or jerk