I think it's every doctor's pet peeve when the patient says that they have a high pain intolerance.
It's probably mostly because patients who say that almost invariably have a very low pain tolerance. Patients who say that are always the worst babies and always the ones constantly begging for pain medications. I don't know if the patients are lying or just have so little insight into themselves.
I don't think I have a high pain tolerance. I think I actually have a pretty low pain intolerance, and that I am sensitive to even small amounts of pain. But on the other hand, I'm not much of a complainer in general. When I was in labor, the nurse kept yelling at me that I had to tell her when my pain level was high. She said to me, "You're too quiet! I can't tell if you're having pain or not!"
How about you? What's your pain tolerance?