Hi, I'm 13 years old and my birth in in July I haven't had my period yet, and I consider I don't have breast but there are Knobs ( like knots) there and it been hurting . But my chest is flat. I had brown,white discharge around 1 1/2 or 2 years. And I'm not completely sure what it means I went to the doctor she been saying that normal but idk.if I had discharged for this long is something wrong with me? Since my Breast are like knobs are they coming in even tho it's been like that since 5 grade? My mom said she started at the age of 16 is that going to happen to me ?