Can anyone help Shenner?

Had two borderline high urinary cortisol tests and all symptoms cushings. Salivary was taken once and negative. Did anyone else have this experience? Possible that still have cushings?

http://cushie.info/index.php?option=com_quickfaq&view=items&cid=1:abcs-general-questions&id=47:ive-been-reading-about-the-salivary-cortisol-test-what-is-that-is-it-accurate-&Itemid=111#comment-50