I introduced myself two years ago, and your help and this board was of tremendous help to me, but long story short, I am living in a country where I basically can't get any support for my OSA treatment. Therefore, I have to seek advice online.
CPAP has helped me a bit with my sleep, although my work is causing me a lot of stress, my sleeping patterns are all over the place, and I still wake up 2-3 times a night. However, I already mentioned all of this in my introductory post two years ago.
I have learned to read Oscar graphs to some extent, focusing mainly on the AHI data. I have been experimenting with pressure ranges, and 99% of the time my AHI is below 5, usually around values of 1-2. However, lately, I have been feeling a bit nauseous and tired every time I wake up. This prompted me to read about flow limitation and flow rates. Based on what I have seen in "normal" charts, I think I might still have some uncontrolled issues with my therapy.
I am asthmatic and have nasal congestion problems, especially when lying down. I have been a mouth breather my whole life... Also I am a diagnosed insomniac
I have been using the F&P Vitera for over a year now and I've noticed that it somehow contributes to my nasal congestion. Regardless of how loose I set it up, it still tends to make me breathe through my mouth and I do battle with some leaks with it. Prior to using the Vitera, I used the ResMed F30i, which, on the contrary, forced me to breathe through my nose. However, I could never get it to work perfectly as even slight movements would dislodge the mask and cause air to blow into my eyes, waking me up. This happened every hour or two, leaving me restless. However, I didn't experience any issues with leaks, and I think the flow charts were better with the F30i. I'll try to find some to share. I'm considering getting the AirFit F20 and giving it a try instead of the Vitera. But it goes without saying that obtaining masks in my country is a real hassle, and I have to pay for everything out of my own pocket, including the CPAP device and masks. Our insurance doesn't cover CPAP therapy.
While it is true that I am very stressed out and nervous, I have also been diagnosed with insomnia. The stress is contributing significantly to my insomnia. I want to address my respiratory problems during sleep, and deep down, I hope that my symptoms are not a sign of me going crazy, but rather that they are caused by OSA

These are my zoomed-in charts during the episodes of flow limitations. Let me know if you need some more data.
What do you think I should try to do? Should I increase the maximum pressure, maybe in an effort to break through those episodes of flow limitation?
Thanks