Lindsey Vonn is a world-class athlete and Olympian ... but she still has to deal with trolls.
The 36-year-old retired skier is firing back at her critics in a lengthy post on Instagram on Friday ... opening up about her battles with negative comments on social media.
"Even as an athlete there are ruthless comments and media stories that tear apart my body and I admit it sometimes hurts me," Vonn says.
"I’m a normal person and sometimes I slouch, my stomach folds over, my cellulite shows on my butt, or I don’t fill out my swimsuit top just right.