I don't remember her ever being diagnosed with vertigo. The only thing medical that I am aware of is that she took medications for ADHD. As for 4 years ago, she fell, lost her confidence, had anxiety issues and stopped competing. It isn't that that in itself is terrible for a person, and it is totally understandable and forgivable. However, it does preclude talk of being the greatest of all time when it happens in someone's prime and in the only big stage in women's gymnastics. I never saw it happen to Michael Jordan, Lebron James, Earl Campbell, Usaine Bolt, Muhammed Ali, or practically anyone else you may consider the greatest of all time.
With that said, it is only my opinion. And I couldn't care any less about her legacy, your opinion of her, or your opinion of me based on my opinion of her. The only reason I brought it up is that HenryJames claimed that it is racist to not like her. Quite frankly I found that one of the dumbest comments in the history of the internet.