Yes I had a cardioversion 8 days ago and it is my first day back to work. I work in Cat Scan moving a lot of patient's on and off tables. Moving heavy patient's back and forth to and from ER. Ive noticed some discomfort in my heart feel's like a stabbing pain sometimes or like my heart is bruised is the best way to describe it. Had coworker perform EKG and I am still in sinus. Is this pain something I should be concerned about?