High oestrogen?

Okay, so I'm only 16 and I've been getting blood tests for low iron and my doctor discovered that my oestrogen is really high. It's apparently supposed to sit around 80-450. Mine is currently 3180. I'm being referred to an endocrinologist (a hormone specialist) but I don't know how long that's going to take. I'm not on any medications or anything that could cause such an irregular number and I'm kind of worried because google has said lots of bad things. I was wondering if anyone has had/ heard of a similar scenario and maybe have some idea as to what could be happening?