I Have Had Terrible Shoulder, Neck, Across The Top Of

I have had terrible shoulder, neck, across the top of my back pain, the tops of my arms, as well as my wrist and elbow joints. Both my hands have some swelling. I'm 65 and scheduled to have a heart ablation done at Catholic Medical Center on Wednesday, February 1st. I'm concerned about having it done while in such pain. It is difficult to raise my arms, to reach, to turn my head left or right. I'm only able to lay flat on my back to sleep at night and it's difficult to lift up to get up off the bed. Thank you. Cindy.