article_snippet.sent: Within weeks of starting the NuvaRing, Megan Henry said a classmate of Erika Langhart's at American University collapsed during training, unable to breathe.
article_snippet.sent: I mean I was struggling, I was struggling to breathe.
article_snippet.sent: It's like an elephant was sitting on my chest all the time.
article_snippet.sent: Megan Henry went from peak physical condition to using a breathing machine.