Cook "Doing Fine" After Post-show Hospitalization

David Cook courtesy Fox
American Idol contender David Cook ducked out of Tuesday night's show early - upon completing his performance of "Little Sparrow" - and was taken to a hospital,
People reports. Cook, who had complained of heart palpitations, was treated for high blood pressure and released shortly thereafter. Sources tell
People he is "doing fine."
What brought on the anxiety?
TMZ hears that Cook has been under emotional stress because his brother, who has been battling cancer, had a setback within the past week.
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