Diane,in general I think you will find that most of us who have had a bypass have all recovered and have more or less reentered our lives. My odyssey began Dec 26 2009...
The time it takes is dependent on the state of condition prior to the event that precipitated the bypass surgery. It is also dependent on how hard the bypass patient is wiling to work to recover physical abilities.
The real gateway is not the driving of a class A but the loading unloading and set up. I was driving our class A after about three months... But was limited in my ability to lift and carry. I still have some lingering lifting and carry limitations which is a combination of post surgery issues and a long standing lower back issue.
I lost a lot of muscle due to atrophy from prolonged inactivity due to complications some if which I have not recovered...
While I had not run a marathon in 27 years I ran/walked one 9 months after heart attack and triple bypass... I have completed additional 25 marathons, 50 half marathons and many other races of lessor distances.
The point of all this is that having a heart attack and bypass surgery does not necessarily limit future physical capabilities.. There are some limitations but they are such as they can be coped with and limited in terms of impacting a normal life...
I have some limitations due to my surgery, some due to age (73) and other due to attitude (what I am willing to endure) Driving our class A is one of the most relaxing things I get to do... The loading, unloading, and some of the setup are a challenge for me...
In terms of pain/discomfort... I am thinking it is suppose to hurt and be uncomfortable recovering from bypass surgery...
Without knowing your husband, it is hard to approximate his comfort zone in terms of rehabilitation, and realization that there is a new normal to be embraced... I am not sure how long it took MY DW (Becky) to diminish her concerns about my vitality/absence of being fragile but I can tell you that my progress exceeded her expectations so there were some adjustments that took place...
Johnny
2004 40DS02 Travel Supreme ISL 400
Jeep Grand Cherokee, Ford F150
M&G Brake & Break Away
Blue Ox Aventa LX Tow bar