Coreg and seizure meds

Started coreg in 2000. 2-3 Months into taking Coreg I noticed my back beginning to ache. I questioned my Dr. about possible side effects and he looked at me like I was nuts. I have been scanned and examined in all possible ways and nothing interesting was found that could be causing my back pain. Jump ahead many years to the present and again I have been scanned even more than before to try to find the cause of my pain. Like before nothing interesting has been found. I still feel coreg was the cause originally and is now continuing my pain. 7.5mg vicadins won't even dent the pain. Any related comments would be appreciated.

Greg