What is the greatest pain you ever felt.

This morning, as I was waking up, I accidentally twisted my right bicep muscle, the one just next to the armpit. I felt the greatest pain ever; it lasted for 3-5 minutes. I was literally screaming and sweating. Even now, hours later, I still feel some pain when I stretch my arm. It makes me wonder what the greatest pain you have ever felt is. I've seen burn victims in hospitals and always pray to God that I never find myself in such a situation.