I'm 16, am 5'7 & 1/2 feet tall, and weigh 127lbs. i drink one regular nos energy drink every day at lunch on school days. is there any danger to this?

Not normally: One/day is normally safe as long as you do not take in other stimulants and you do not have other health issues such as a cardiac arrhythmia. Singulair (montelukast) can cause tremors and stimulant drinks can make this worse. Stunting of growth is possible but research is going back and forth. If you are playing after school sports, i would recommend cutting back due to cardiac and dehydration issues. Goodluck!