I am only 3 weeks away from taking a fitness test to join an occupation which i have strived to do all of my life! my problem? It all started several years ago when i joined the territorial army. i was taken on a run which was completely unexpected and unprepared for and at the end of it i threw up every where!!! This then happened every time i went running. I am a petty fit person who goes to the gym 4-5 times a week, i use all of the equipment no problem, but when it comes to the dreaded treadmill i start running and after about 500meters i start to feel extremely breathless and that good old nausia starts its work!! I was wondering if anybody had any ideas to help me, maybe some breathing techniques which might help me to take in more oxygen!!