No!!! I am 16 as well and though I don't know you, I know what you're going through (to a certain extent) I'm 5'9" and I weigh 180. Technically, I'm only partially overweight, according to the BMI chart. Anyway, I've had friends your height who weighed 90 pounds, and they get sick very easily, and when they get sick, it's bad. Your body will start to shut down because it cannot support itself. The average weight for your height is at least 110. At the very least.