Elizabeth N.
Herder of cats
In my experience, lying flat with a low back problem is a recipe for unbearable agony and loss (temporary) of leg function. PT and chiropractic have been very helpful for me--with the caveat that my discs are intact. I'd suggest progressing to MRI and diagnostic work as soon as the insurance will cover it. And I'd challenge that insurance requirement, because in an acute disc injury situation, prompt treatment can be critical.