I wouldn't personally be worried about it :) it could be muscle mass also because t makes you gain it by basically doing nothing

I agree with MxCake. If your body type doesn't look any difference, maybe you should try a different workout routine, switch it up a little by doing something you haven't already done. I don't know anything about working out either, so feel free to ignore what I said and tell me that what you're already doing is working for you and to please mind my own business, lol. I'm being facetious and kidding you. I'm not at all serious...LOL!