I am 27 yo male and I been bodybuilding for years, for some reason I got sudden pain in knees about a year ago, it laste for couple of weeks, hurted really badly, barely slept some days during those couple of weeks. (varietytrainer.com)
Pereira - Smith stayed in the microbiology department for a master's degree, but those studies were interrupted in 1971 by sudden pain when a disk in her back degenerated. (sciencemag.org)