This might happen if you're using a shared device. We'd recommend adding extra layers of security to your account with these tips: https://goo.gl/8ahrLA . Let us know if that helps.
@TeamYouTube so I have a bunch of videos in my history that i myself have never watched. Should i be worried somebody else has access to my account that dont know?
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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