I was more so referring to the neuromuscular damage that comes from a stroke (still cerebrovascular). Definitely a link to apnea when diaphragm and intercostal damaging is involved. I don’t really get what your saying now about pc02 and p02 levels. Normally the body uses blood pH(through sodium bicarbonate which is the transporting form of c02) and pc02 levels in the alveolar capillaries. If you have high levels of blood O2 the body wont ever know if your blood ph is around 7.4 and your pc02 levels are around 40 or so. Sounds like what your saying could be very problematic considering average pO2 levels are about 2.5 times those of pcO2 levels in blood. (100 and 40 respectively). Not saying your wrong as with many medical reportings theres multiple answers. I’m definitely gonna do some research. This could very well be the most intelligent conversation shift has ever had btw