Anders Kelto

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Transcript

AUDIE CORNISH, HOST:

Johnny Reynolds knew that something was wrong as far back as 2003. That's when he first started experiencing extreme fatigue.

"It was like waking up every morning and just putting a person over my shoulders and walking around with them all day long," says Reynolds, 54, who lived in Ohio at the time.

In addition, Reynolds was constantly thirsty and drank so much water that he would urinate 20 or 30 times per day. "And overnight I would probably get up at least eight or nine times a night," he says.