NEW ORLEANS -- Percy Harvin has expressed confidence of late that doctors are confident they have found a way to manage the wide receiver's issue with migraine headaches.

But Harvin had refused to elaborate on the topic until Thursday.

Harvin told NBC reporter Andrea Kremer that he has been diagnosed with sleep apnea and that doctors believe that is the main issue triggering migraine headaches that kept Harvin out for much of training camp.

Harvin had an extremely scary moment during the preseason when he collapsed on the field at Winter Park after the onset of another migraine. He was taken to the hospital in an ambulance and said his heart stopped beating for 10 seconds while he was there. Doctors began to believe that Harvin was not getting enough oxygen while sleeping.

Four days after being released from the hospital doctors put Harvin through an overnight sleep test. He told Kremer that during the test his heart stopped beating eight times. That led to the diagnosis of sleep apnea, a disorder that affects breathing while sleeping.

Harvin now sleeps while wearing a device that pumps air into his nose. Harvin told Kremer he is no longer taking any medications. That is important because it was believed the medication Harvin was taking caused him to collapse.