When I went through puberty 12/13, I got stretch marks everywhere, on my arms, breasts, thighs, calves, and I have a circle around my belly button. I was not overweight or anything. They just started popping up randomly and everywhere. I went to a dermatologist and she said there's no definite answer that they'll dissapear and I may still get more. I dont know, anybody else have this problem. I've tried coconut oil, and bio-oil. I have such low self-esteem and dont let anyone see my body.