Hey GLWS and best for recovery.
I disagree about pain medication - there is no reason to suffer, especially if the pain relief helps you with recovery, movement and physio. I snapped my femur in two and used the opoids I left hospital with responsibly and did my physio, topped up with paracetamol as and when needed. Made the first few weeks bearable and helped keep me moving as much as possible which is often key. Did a 200km fixed 6 months later.
Of course if you don't think your personality suits then fine, but this white knuckle approach to serious injury is unnecessary as long as you are responsible and see your surgeon / GP during recovery and are honest. Best of luck dude!!