That's so weird man I have the exact same problem and a very similar story ,I could beat all the boys even in highsschool -I could bench 220 @ 14 . .i had my first period at age 10- then my libido was through the friggn roof all the time till age 17..(I Prb "relieved" myself 1ce or twice a day -which I think is a lot for a female).then my thyroid got super low long with a bunch of my other hormones .. And I started to become very weak which was really odd for me ,my period stopped as well as my crazy libido, it wasn't as bad anymore but I felt like shit ,I was cold ,and lost a lot of hair aswell.but now... my libido is explosive again.anyway, I was sent to an endocrinologist and since my thyroid wasn't the problem anymore they checked my adrenals ,turns out that I may have a form of cUSHINGS DISEASE .which can also make ur adrenals produce extra male hormones-which make u super horny all time!!!! U may want to mention to your doctor . Especially if your energy is really up and down .