Had my third comp yesterday, won my first fight but was very tired after it. Was exhausted all the way through the second fight and ended up losing on points, and then promptly exited the building to throw up everywhere. This happened previously at my first ever comp, second comp I was fine as the subs came quickly. Was supposed to have another match after the one I lost but pulled out due to feeling light headed and continuously vomiting. I'm definitely ashamed and embarrassed about pulling out. I'm certain that I could have done better had I not been so fatigued. Straight after the match I found myself coming up with the solutions to the problems my opponent was presenting me with. At the gym I can get through Rolling Classes which involve well over an hour of 5 minute rounds and 1 minute rests, so I don't know why I'm getting so exhausted in live competition. Is it just down to bad cardio? Not relaxed enough? Poor breathing? Nerves? I'd really appreciate input from anyone who's seen or has had experience with this.