Out of those, definitely a migraine. I just spent that day sitting in my room with the curtains shut, holding my face and drinking room temperature water.
The worst pain I've experienced was when I sliced my hand up really bad. Not the slice itself, I was really drunk at the time and didn't really notice, but later, in hospital. Mostly when they started to give me stitches without any anesthetic (due to the alcohol in my system or something). Yikes. I was shaking from the pain, and it was the most encompassing feelings I've ever had. Everything was just sharp, intense pain, focused all on the one point. Now, this wasn't a light cut or gash on the finger we're talking about. I cut my index finger so deep it severed both tendons, and scratched the bone. My index, middle and ring finger on my right hand looked like something you would see in a gore thread on /b/. It hurt nearly as much when they took them out the next day (stone sober), but it didn't quite reach that point.