Britney Spears Says She Got So Sick She Thought She Might Die, Rips Sister - TMZ

She admits she's being a drama queen by saying she's possibly dying, but says she never gets sick.

While Britney makes her illness sound very unpleasant -- drama queen or not -- she says it actually made it easier to stomach Jamie Lynn's interview with "Nightline" ...

Britney says her sister was not around her enough to speak on the topic and chalks it up to Jamie Lynn trying to pump up book sales.