30DBC Day 3: What is the greatest amount of physical pain have you ever endured?

I think, the greatest amount of physical pain that I have ever endured was the pain I got after training boxing for the first time. I sometimes accompany my aunt in the boxing gym and train as well, but I'm not really into boxing. We were given different trainers but same exercises. We jogged around the ring as a warm-up exercise, did some boxing routine and abdominal exercises, and got a massage after the training from our trainers to cool our bodies down. When I got home, I took a bath and went to sleep as I was really tired. When I woke up, I can hardly move. My joints and muscles were aching so badly. It was so hard to go up and down the stairs, to stand up and to sit down, and even to take a step and walk. The pain lasted for three days. It was a really hard but it's a good thing to experience ;)