article_snippet.sent: Scroll down for video .
article_snippet.sent: One night I tried to brush my teeth on the tour bus and couldn't even stand.' '
article_snippet.sent: There were definitely times I couldn't shower for a full week because I could barely stand,' Avril Lavigne continued. '
article_snippet.sent: It was terrible, "I could barely eat, and when we went to the pool, I had to leave and go lie in bed,' Avril Lavigne said. '
article_snippet.sent: My friends asked, "What's wrong?
highlights_snippet.sent: Couldn't shower for a full week as Singer was unable to stand .
  