Maybe she's already been diagnosed and had treatment but didn't want it to take away her olympics Who knows?
Wasn't she coached and abused by Larry Nassau, or whatever his name is? I'd imagine that people Who've went through that often suffer from things like PTSD, or other mental difficulties. Especially when in order to pursue their dreams, they're forced to represent the organisation that allowed it to happen.
Maybe she shouldn't have went to the olympics if she was struggling. Maybe she should've been more upfront. Maybe she should've fucked off and not supported her teammates.
None of us know much about it all, yet most are quick to condemn.