I started to get gray when I was very young. About fifteen...some people do. Still, I strongly recommend you mention this to a doctor to rule out any illness. Diet can also play a part so be ready to be honest and communicate your habits, diet and concerns with the doctor.

Just pluck them....maybe they were just random....

Hair colour is due to a pigment called Melanin.The original color of human hair is white,but the amount on Melanin determines the color of your hair.More the Melanin percentage in your hair,more darker your hair looks.When the glands on your head producing Melanin die out,hair starts to turn transparent in color and gives a gray impression which is lack lustured and symbolizes bad hair health. There are a lot of factors that influences this.It's not always heredity.Environmental changes,diet,Chronic illness,side effects of medicines,hormonal imbalance,side effects of cosmetics,lack of sleep as well as amount of sweating(salt balance in scalp) and lack of breathing of hair follicles gives rise to such conditions.People who always put on a cap,can't expect their hair to be healthy.Unike other cells of body follicles do respire in natural way and that's why the hairs keep growing even after the death. . Now about the remedy.Your process is not due to natural aging and may be due to some factors the glads have stopped producing Melanin.Consult a good dermatologist to diagnose your condition. The below site would give you a few home remedies to treat it. http://www.home-remedies-for-you.com/remedy/Premature-Greying-of-Hair.html Don't panic.Your hair would get back to normal with time provided you care.Good luck.