Re: 17 year old female with a chin hair????????
I really can't give any good advice except to check with your doctor. Have you been to a ob/gyn yet? It sounds hormonal, maybe something isn't balanced. I would definitely get those irregular periods checked out. As far as not being "developed" keep in mind every woman's body is different and we develop at different times, but again, look into visiting your normal internal medicine doctor or see an ob/gyn. They can give you their expert opinion. Blood work will also tell if there's a problem. I wish you the best!