Yes I did. My follows up with this specialist do not happen back to back. I had three studies conducted two confirmed the central apnea, the third test was for narcolepsy, the fourth was him trying a dosage of triazolam, and since that did not work he is discussing the CPAP. Each of my appointments take about 2 months to get into see him if not longer. Central apnea is different than OBS it is not as common so he tried the pill first and now we are going towards the CPAP. Without a CPAP I should have been rated 30% and later I could have filed for an increase once I recieved the CPAP for the 50% rating.