ya there is a fine line between caring for how you look and metal illness obsession. /r/advice and other subs are having to deal with a mentally ill guy that has become obsessed with his image.

https://www.reddit.com/r/Advice/comments/efp7et/what_do_i_do_if_im_too_ugly_and_socially/

this guy spends his entire life posting on multiple subreddits per hour . avoid becoming him.

the general advice is enjoy it with obsessing over it while you can. you have a nice body to attract a male to get you pregnant. once you have the kid your body might look not as good as in massive stretch marks, which im not saying is bad but does no good for body image. eventually your breasts will sag , your belly will bulge ect.