Hello, That is not normal, as you have mentioned. Generally, at age 13 you are not done growing in height. But, considering you have stayed around 5 2 you should also ask yourself if you are at a healthier weight. Certainly I feel you should have a check up on your thyroid, some blood tests run by your doctor and perhaps a visit to a dietitian with a 3 day food diary where you have written down all food/portions exactly/ activity to see if you calorie intake is less than caloric needs. You might want to be on a multivitamin, but I would await further testing and visit with your physician and dietitian before any interventions. Healthy Regards, Kathy Shattler, MS,RDN