More medical adventures...

So... Friday I saw my sleep doc. My oxygen levels don't drop too far - into the low 90s/high 80s. But my REM sleep - the deep sleep a person needs most - is fragmented, and you didn't really need someone to explain *why* given that the drops in oxygen level corresponded to the fragmentation of the REM sleep on the chart. In places, you could almost shove the graphs together, and see how desperately my brain was *trying* to move me to REM, but kept getting disturbed by the whole "hello, oxygen?" complaints. ( cut for length )