My Mom just had a pacemaker implanted on Tuesday. Since Friday, she has experienced swelling in her feet, ankles and calves. The feeling of tightness has somewhat subsided, but they are all still swollen. I called her surgeon earlier today, but I have not heard back yet. What can be done? Should we go to the ER? She is taking sotalol for blood pressure, pravastatin for cholesterol, synthroid for thyroid regulation and xarelto for blood thinning.