Hello Kellygil,
I commend you for having the x-rays and MRIs. That is a BIG step in the right direction. Though it has not indicated why you are having the back pain, they do tell you what most likely is NOT causing your back pain.
Okay, now where to? Kellygil, may I ask you how long you have had your current mattress? Also, would you be so kind and let us know if it is a "firm" mattress, one with a pillowtop, or anything else you think we should know about?
I (we) look forward to your reply.
RichT