Use the pain medicine as prescribed. If it doesn't keep the pain at bay and manageable, then talk to the doctor about it. You don't have to be in that much pain, and you shouldn't feel like you have to tough it out.

I'm sorry they did so much work at once. Your doctor "should" have consulted with you first, and taken it in smaller amounts. I surely wouldn't have any more done until you are through this pain event.

You can find pain level scales all over the internet. . . they generally go from 0 (no pain) to 5 or 10 (unbearable pain) ... my own goes from 0 - 10 and beyond and I have a word to describe each "number" which is the most important ... they are MY levels to explain where I'm at to my doctors.

In answer to your first question ... it's too much when you say it is!
You determine what your pain levels are, and what you are willing to experience based upon your life issues and things you need to do (and how safely and well you need to do them.)