I was hit by a truck a few years ago which broke my left femur and fractured my pelvis. During my first few days in the hospital I felt fine due to morphine however, after I complained the morphine was giving me odd feelings in my stomach region then switched me to hydrocodone. I assume, the morphine they were giving me was a higher dose then the hydrocodone, as I was soon feeling pain from my pelvic region after the switch however my broken femur didn't bother me at all. It got fun when I was placed in rehab.
After two weeks, I was transported to a rehab center named Seapines and proceeded to have the most pain filled two weeks of my life. My first day of physical therapy required them to pile three pillows under my ass for me to even sit on the bed-board they wanted, even under hydrocodone(My physical therapist even said she was surprised how alert I was while taking it, don't know if they gave me a higher mg then usual or if she was just going off the majority of the patients in the place which were elderly). If you can imagine the worst pain of your life for a fraction of second every time you attempted to sit up or sit down that's basically how this was. After a week, when they allowed me to hop on my good leg with the use of bars, the act of hopping would almost cripple me to the floor. After each of these sessions, I would call in a nurse every fours to give me another pill(they told me it had to be at least four hours between each) until the constant pain dulled down enough for me to sleep and then wake up and do it again for another day. I did this for two weeks, was released to go home, spent another week and a half laying around until the pain was controllable enough for me to walk around with crutches without fear of collasping in a shit fit.
And this was simply a fracture.