My mother had bypass surgery at 94, last year. It took 4 days after the surgery and she was out of hospital.Another week and she was comfortable taking walks alone..she would want to take her walks sooner by her self, but we didn't feel comfortable knowing she would be outside alone. She did quite well and she is still doing well. It is all about health in general. She takes natural supplement-herb that she greatly values, is called Hawthorn Berries. My mother takes herbal supplement for anything that bothers her, colds, flu, pain, etc. She has this book, and tells me about it all the time..God's Medicine Is Best by Linda Wise (home remedies)
Hope everything is going to turn out well for you, take care!