Britney has seen doctors who have been referred by other doctors, plus doctors who have been referred by celebrities Britney knows, and doctors referred by her lawyers, family and friends. We're told the process has been excruciating for her, partly because her disease is severe.

Sources tell slightly different stories about the efficacy of the medication. A friend says when Britney takes her medicine she is like "a different person -- normal and sweet." But she takes her meds for a while and then feels as if she can live without it -- so she stops taking them -- and her condition quickly deteriorates. But a professional tells TMZ flatly, "The medication just isn't working." - more on this story

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