Your genetics may have a lot to do with this. How much do your parents measure and what are the heights of your siblings (if any).
You are 16 and 1.5 metre transform to 4.9+ inches which may or may not be less depending on your family pool.
Please reveal more about your lifestyle (diet, sleepings habits). Stress too plays an important role in deciding our physique in early states. Studies have proved that teenagers who undergo from huge amount of stress are more likely to face health disporders.