My surgery and experience were similar to ejc61's. The pain in the hospital was never terrible, though I don't know what it would have been like if the medical staff hadn't been controlling my pain well. All the pain has been at and near my incision, not in the rest of my body, though I too was told that it would feel like getting run over by a truck. I think the combination of being relatively young (OK, you 20- to 40-somethings, laugh if you want, but it's all relative) and not having a sternotomy helped there.
I've been home for a week and a half and am still taking one or two oxycodones per day, alternating with Tylenol. I would take more Tylenol and less oxycodone, but I'm only allowed 2000 mg of Tylenol per day because of the Coumadin, so that's only three doses which isn't enough to cover the day and night yet. Most nights I still take Tylenol in the middle of the night. Last night I didn't but regretted it in the morning. You really do need to stay ahead of the pain. Even if the pain isn't severe, it slows you down and impairs your breathing and your mood. I have noticed a significant improvement since I've been home -- I can pull the bedsheet up over me with my right arm now, which I couldn't do when I first got home. And I felt up to blow-drying my hair for the first time two days ago, which was a nice little milestone.
Claudia Z.