Damn. The lady in the interview in the video you posted said she was feeling terrible and wanted to drop out when she was around 3rd or 4th and yet she was able to push through that but difference is that when I did the 1200m timed and I ran the first lap when heading towards the start of my second lap I wanted to give up as I was tired as I had probably run a little hard at the start but I wouldn't give my body the chance to stop and just kept going the remaining two laps; running zombie and it is just a feeling you want to get over and done with but she has the ability to keep pushing and someone get past the terrible feeling. Props.