I was shocked when my doctor told me I had severe sleep apnea after a sleep study. "You have severe sleep apnea," the doctor told me in his office while peering into his computer screen at my data. I was exhausted constantly, even with eight hours of sleepFor at least five years, and probably longer, I felt exhausted almost constantly. Sleep apnea wasn't on my radar. So I agreed to the sleep study — and the home test confirmed that I had severe sleep apnea.