Hi, Thank you for providing the brief history of you. A thorough Neuromuscular assessment is advised followed by an MRI of lumbar spine. As you have a history of disc degenerative changes, a thorough assessment is required followed by an MRI to see the status of the disc. As, nerve carries dual functions - motor and sensory. So the pain and weakness are the two abnormal symptoms usually noticed with the degenerative disc disease as it pinch the nerve roots. I will advice to undergo physical therapy - therapeutic ultrasound therapy and TENS therapy to reduce pain. Also, core stability and spine muscle strengthening is required. Along with this, add on to the lower limb strengthening exercises which will help regain the confidence and strength in the lower limb muscles. In my clinical experience we receive patients with similar issues and we recommend physical therapy due to the success in the research. Majority respond well and regain the functions back. Regards Jay Indravadan Patel