I lived with a horrible tooth abcess because I didn't want to disrupt the dentist's schedule, so I took his next available appointment and waited a week, while my gums swelled bigger and bigger and the pain went higher and higher. I knew once I got in there, though, that it would be soon over, so ... I am good if I know when it is going to stop.
I had a hole in my intestine except I didn't know that's what it was, it was just this very sharp pain in my lower abdomen -- I worked throughout the week with it and that weekend, I lay on the couch and pretty much had nothing to eat or drink because it hurt so much to move, Monday I forced myself to get up and go to work but I had to go lie down in the sick room for the first time in my life. So I called the nurse practitioner and she said she wanted me to call an ambulance and get admitted to a hospital. i said I thought that was a little dramatic but I would think about it. I drove 40 miles home and made sure my neighbor could take care of my cat and then I called the ambulance, but when they arrived, I screamed and burst into tears when I stood up because it hurt so badly, but I wouldn't lie down on the stretcher, I insisted I could walk. Fever was 102.5, my white count was twice as high as normal, and I was going into shock. They had a horrible time getting any blood out of my veins because I was so dehydrated. But I insisted on making civil conversation with the tech riding in the back of the truck with me. I would just scream when the truck went over a bump and it jostled my insides, but then get right back to "So, how long have you been doing this?" etc.
They kept me in the hospital for a week.
I heard recently that redheads have higher pain thresholds naturally.