For the rest of us, this infidel is called end tidal co2, I think it is expressed as EtPco2 or sum such. Literature seems to suggest that for some patients the CNS is not a culprit. Rather, the level of co2 in the lungs is lower than the trigger point that signals brain to order a breath. If your co2 is really low, the brain actually gets the signal interpreted as hyperventilation, an orders a halt in breathing as correction.
Hope you continue to get rest and this recovery will be swift.
You'll note I am listed as an Advisory Member. I am honored to be listed as such. See the fine print - Advisory Members as a group provide advice and suggestions to Apnea Board administrators and staff concerning Apnea Board operation and administrative policies. Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.