Hello, I have studied your case. Most probable reason for your symptoms could be postural problem as you may be sitting for long time and obesity. I will advise you to do MRI spine to see for any disc bulge or spinal canal stenosis. And also check your vit B12 and vit D3 level. Medication like methylcobalamine and analgesic will reduce pain. You can continue yoga exercises and focus on spine extension exercises. Some exercises which can be done include- Spine extension exercises, Lying on your stomach flat lift leg 6 inches from ground, do it for other leg. Now lift both hand and leg simultaneously, 6 inch off the ground and stay Position for around 10 breathes. Core stabilizing spine exercises will help. You may consult physiotherapist for guidance. He may start TENS, or ultrasound which is helpful in your case. If not relieved you can take epidural injection. You can cure disease by doing all modalities with balancing your posture habits. Hope this helps. Wish you a speedy recovery. If you find this answer helpful do not hesitate to rate this answer at end of discussion. Take care