Frankly, I wonder if there actually is any way to prepare someone for this! I feel my OS tried to and looked me in the eye and said, "It is going to be a very very difficult painful 6 weeks or so and you are going to wonder why you did this." At the time, I smiled and told him I understood.
But, did I really? The cumulative effects of near-constant pain, lack of sleep and isolation just slam you -- not to mention any non-surgery related things that pop up such as work stressors for those of you who work, weather for those of us who seem to have gone weeks without sunshine, etc. So yes, I'm not surprised by it but I would be lying or delusional to say I think anything he could have said would have really prepared me.
Having said that, we all will move forward and just need to keep on keeping on!
Roxie