Hello, I have studied your case. There is possibility of lumbar canal stenosis, MRI will help in diagnosis. Epidural steroid shots remains a good option, which can be repeated again though you have taken in past. Till time you can take analgesic and neurotropic medication. And remember; avoid lifting weights, Sit with support to back. You can consult physiotherapist for help. Physiotherapy like ultrasound and interferential therapy will give temporary relief. Core stabilizing spine exercises will help. I will advise to check your vit B12 and vit D3 level. Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries. Wishing you good health. Take care.