am i healthy or too big?

so i am around 175lbs and 5’8, and i look like this.. my friend is 160lbs and she’s shorter, but is a little chubbier than me so i get super self conscious when weight is brought up 😕 why am i so heavy? everytime i ask one of my friends what they think my weight is, they guess way less than i actually am. i have big thighs and butt, could that be it? thank you in advance 💞