I Have Low Back Pain And Hamstring Pain. My Follow

I have low back pain and hamstring pain. My follow up MRI showed no difference fro 2 years ago. I am now really concerned that the problem could be the medicine. I have had 3 injections of Prolia in a little more than a year and recently was put on methotrexate-- also on plaquenil. I am thinking it might be the Prolia after reading the side effects!