Something is just wierd to me

[Kingvegeta]

Hi so i have a ball python its only about a foot and half long bo problems feeding or problems of any real sort but when i get him out i do feel some of his scales kind of lifted i guess its only on his belly he dont have mights or anything but this is just wierd to me this is my second ball and im did a little herp studying in school but i dont remember reading anything that may cause this any info would be great if it matters i did get it from petsmart which may have been a bad choice but i take it as savingnhim instead of buying him