Sorry for the late reply and inconvenience.
Thanks for all this additional information.
I understand your concern.
And it’s my first privilege to pay attention and provide you with suggestions to relieve your discomfort/ worry.
Well as you describe, it sounds like Lumbar radiculopathy/ nerve impingement/ tendonitis.
Do gentle massage with muscle relaxant ointment and apply warm compresses with a heating pad on the lower back.
Physical therapy can be helpful.
Refresh Your Posture.
Do gentle stretching.
Take OTC Motrin.
And see an Orthopedist for a clinical examination for further evaluation and management.
Hope I have been able to clarify the situation for you and helped in resolving your query.
Let me know if you have any further queries so we can discuss it thoroughly in every aspect.
It’s my pleasure to continue this conversation until you satisfy.
Waiting for your response.