That doctor was incredibly negligent about pain management.

There's a level called 'unconscionable pain' that is essentially always malpractice, and if you're clamping your jaw and arching your back reflexively, you've hit it and then some.

There's no reason not to mildly sedate a patient, and no reason why anyone should suffer undue pain. Sure, it'll hurt during recovery, but that's why they should issue with vicodin.