Your sytem shuts down not only from being bed ridden for so long but it seems to recognize something isn't right with your heart. You simply can't talk. Maybe a light whisper but nobody can hear you. You have no ass behind your heart to make your voice have any bass or volume. And holy shit, you do not want to cough as that was extremely painful if you did. Walking...they start by helping you stand and then sit back down. Eventually, you stand with a walker. Then they help you walk with it. I had to use a walker in the shower while the wife scrubbed. Without any strength, everything becomes difficult. Then there is the constipation issue due to the pain meds...I won't go there but the treatment isn't something you'd enjoy. Most embarrassing....I was by far the youngest one at cardiac rehab. Old ladies were using weights I couldn't pick up. You are that weak. It has taken me two years to get back to where I was.