@werby Human bodies adapt and specialize. There is a wide range of base ability range as well as a spectrum of possible adaptation and potential adaptation.
Specialized training, when paired with genetic advantages, and a higher than normal ability to build certain muscle structures, all for...
@aaharpervas Make sure you're eating enough and see a doctor and have them do blood work for anything off and whatever else they suggest.
You'll want to find anything they can identify as early as possible.