Yes negative for apnea, but showed 13 arousals per hour and low levels of deep sleep. I think I have upper airways resistance syndrome, which doesn't show up on the AHI measurements but should show up on the RDI(respiratory disturbance index). For some reason my clinic doesn't measure that, but I've read that it's very common around the world to measure RDI's, and it is known that people with low AHI and high RDI will still suffer for daytime sleepiness.
I'm 25.
I read another persons problem where he had extreme daytime sleepiness but showed negative for sleep apnea. He said his airways was completely collapsed while he was awake. Image below.
https://imgur.com/a/l90ZLHis sleep study showed very low amounts of deep sleepy. His doctors theory was that his body never went into deep sleep because it was constantly in a state of alert trying to keep his airways open.
I have also read that some say upper airways resistance syndrome precedes sleep apnea, as the body after a while stops responding to the narrowing of the airways and results in the airways collapsing and apneas/hyponeas occuring.