Hi - I had written another post and palerider reminded me to move it back to here, so that people could see and be reminded of my history, and also I realized that the sticky post for newbies recommends to keep everything together unless it's been a significant amount of time.
So here is me moving my post back to its correct location.
Apologies for the confusion and not following the rules.
as always, thanks if anyone can help! I sure do appreciate you all.
The other night I'm pretty sure I had some awful events - woke up feeling like I was hit by a truck, feeling all the pain, irritability etc.
the AHI technically was fine, but I guess I'm confused about how the AirCurve 10S marks events.
1) for example - how did that time period I am showing in sleepyhead not get marked as a hypopnea when there was a pretty drastic reduction in flow for about a minute? I'm so confused because I've seen hypopneas get marked that are actually nothing because it was just an arousal, but how does the software miss what seems to me (and felt like) a pretty obvious hypopnea?
2) is it true that the AirCurve 10 S doesn't mark flow limitations and only the vpap does?
I am asking this question because I thought I read someone say that the AirCurve 10 S doesn't measure flow limitations because it has no way to respond to them, but I could be wrong.
side note: As many of you might guess (or not!) - the UF1 and UF2 are user-flagged 1 and user flagged 2 events, using the functionality in sleepyhead to flag reductions in flow rate that meet certain criteria. I believe user flag 1 is a reduction of flow (I forget the %) for 8 seconds or more, and user flag 2 is a reduction of flow of 50% for 5 seconds or more.
I know there is a note to use caution with that setting, but I have found that the UF1 and UF2 catch events where my heart rate monitor/oxygen saturation monitor is going bananas (drop in oxygen sat levels, but huge spike in heart rate) but for some reason the bilevel pap is not catching these times or marking them as events.
3) and then the whole point of asking these questions - would a vpap auto have raised pressure in response to the reduction in flow shown below? does a vpap auto work better at dealing with flow limitations than my machine?
thanks everyone.
Also - it's crawfish season where I am. or mud bugs as some people call them. I don't know why but I love them and all the corn and potatoes and spices they get cooked in. sad for everyone if they don't get to enjoy them this time of year!

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sometimes in order to succeed it just takes one more try. and a lot of frustration along the way.