A problem. With Kim Jongdae mostly.

oh - oh baby, i've had this same worry with him, too ; ; and he isn't anorexic, love. it's something that within the fandom around twitter and tumblr mostly is an issue that come up but people that have followed exo almost religiously since debut always need to make people understand that during comebacks he dances so much to practice his dance that it takes a strain on him since his metabolism is so, so fast so he loses any muscle and fat he has just like that ; u ; he doesn't have an issue with anorexia according to the translations of fans clearing up the worries about him, just an issue with fast metabolism and busy schedules that leads him to have an unhealthy eating pattern -- in some months you'll see swole dae back, but every comeback he gets ridiculously thin, yeah </3 and his ducky legs don't help either, since it makes his thigh gap appear larger, just like yoona's rip

I hope he's okay...

he skipped legs day at the gym