I'm not an athlete nor do I engage in athletics so if I mention the below as the most amazing physical fear I've managed to pull off then it matters to me. Recently I went for a job screening into a paramilitary agency and one of the requirement was to run a distance of 2KM in 25 minutes. At first I was like these guys gotta be kidding me. I hate to walk and now they say run like seriously.
Anyway at the sound of the whistle I took to my heels and ran as fast as my legs could carry me and at intervals I felt like fainting but I kept running because I know how badly I need the job. I was able to get to the finish line at 20minutes. I was amazed. Okay like I fell on the ground first and tried to catch my breath.
For someone like me who is not an athlete. This is a great physical feat to me.