Laura T
If I were you I would have another MRI done on your lumbar spine. I have a herniated disk at L4-L5 that is pinching the L4 nerve which causes pain in my buttocks and down my leg along with numbness. You may also want to have a nerve induction test done. Pinched nerves will cause the pain that you are describing. Whatever you do don't give up. I was hurt on the job 10 months ago. I am scheduled for surgery March 6. I have herniated discs in my neck and my back. It took them 7 months to find the herniated disc in my back. Who's fault was the accident? Did you have car insurance? If so get a lawyer. I hope this helps. If you would like you can email me Laura