I have a full head of hair approaching 50, but the ears, nose, and back just keep picking up speed.
In your case, I guess you are producing DHT in just the right amount to cause hair growth in other places, but not enough to make your head hair fall out. Lucky! I have to eat less than 1k calories a day and zero carbohydrates to stay in the just overweight category, use a couple of different drugs to keep my head hair, and shave my ears every few days. The other body hair I can live with. If I let my ears go, I look like I'm wearing earmuffs after a couple of weeks. I'm 42 - 15 days younger than soon-to-be VP Paul Ryan. He's skinny and has a serious head of hair - and it isn't even turning grey! Yet another genetic lotto winner. Although I don't think he eats carbs, either. I have been living with this crap since my early 20s, and I was bald by 28. Thank heavens for Minoxidil and Proscar!
Ears and nose I worry about, but as for the rest of it I finally decided to embrace my inner sasquatch. LOL