CABG surgery plus three days

I spent all of today in the ICU – under close medical and nursing scrutiny. I had a few runs of AF. But none rapid and/or long. I was in a single room. I slept most of the day. That two hours of earthquake AF last night knocked the stuffing out of me. I was exhausted. And because today was only the third post-operative day, I was coming off a low base of energy and endurance.