Feeling light headed and nauseous everyday i wake up and the feeling comes and goes throughout the day. i'm worried because this makes me unable to focus on my work which causes more stress?

Address stress: Your symptoms suggest that you are experiencing undue amount of stress. The best way to resolve stress is to seek help either at work or in your personal life. Slow down or seek medical help from a medical counselor. Daily exercise, like daily walk, first thing in the morning would help. I do not think you have any serious illness at such a young age.