No I have not had a mri but did have 2 ct scans surgery is not an option. Nerve pain is the worst pain I have ever felt and would not wish this on any one the lyrica really has helped and the cymbalta but ive only been on the cymbalt since Dec 26 2012 from what Ive been told it takes awhile to get the full benefit. The worst now is the pain and spasms.