Perry says sleep apnea was misdiagnosed

Perry said Thursday he was misdiagnosed with the condition during the campaign. It was recently disclosed in the e-book "Oops!" by Texas Tribune reporter Jay Root.

The governor's most notable misstep was his "Oops" comment during a televised debate when he couldn't recall which three federal agencies he wanted to eliminate.

He said Thursday that doctors considered sleep apnea as a potential cause of his sleepless nights. Perry tried sleeping with a special mask, but said it didn't work.

He had back surgery before the campaign and says now he was kept awake by a nerve issue in his foot.

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