i am so bummed right now. totally got gassed out in class today and couldn't finish. i felt so good at the end of class yesterday and we were doing the same thing today (guillotine chokes). Everything yesterday felt really good and today felt really awkward. Half way through class i noticed i was hearing an echo when my instructor was talking but kept on going. Once we got to guard drills i started to fatigue, couldn't keep my opponent in my guard for the life of me and couldn't pass his guard. End of the night was me getting tired and sloppy and caught in a triangle choke right as drills ended. I got up everything started spinning and was seeing dots and lights flashing. Had a difficult time walking straight and was told to sit out the last round of guard drills. I was so bummed out and felt so dejected being the only one sitting on the side.