Hey, Im 15 and i think im going bald. This all started when one day one of my friends at schools aid. "It looks like your going bald". So i went home and looked in the mirror. I noticed my hair is thinning at the back of my head. Now i havent noticed any hair in the brush or in the drain after i shower. But it IS thinning. Now there is no male pattern baldness running in my family. So i dont know what is causeing this. Ive included a picture. now, Im overweight (ill admit it) and i dont excersice nearly enough. I not stressed (i dont think) about anything in perticular. Im just really worried about my social life at school. Do you know if this is male pattern baldness? or if its stress/Thyroid? And also do you think it will grow back?