Stats: Male, 36 years old, 6'2", 215lbs.
Diagnosis: Mild/Moderate OSA via 2 in-person sleep studies in December 2016. Positional component to my OSA-- much worse on my back. No centrals or other complicating issues.
Therapy: started June 7 2018. Immediately noticed an increase in feeling rested. I was waking up before my alarm, noticed that I didn't feel exhausted all the time, etc. I saw my sleep specialist a month after starting therapy and everything looked good in terms of my numbers. My RXed pressures are 5-15, but as you can see below I've tweaked that a few times.
Current Issues
- Starting in August I began experiencing poorer sleep. My numbers began to climb, and I also started suffering from sinus congestion.
- I did not change mask types during this time.
- My body weight has not changed either.
- My CA index has climbed a lot as well.
- I feel like garbage in the morning. So even though I'm waking up before my alarm, it's not because I'm feeling rested.
- When I test my mask fit now using the Run Mask Fit option in the menu, I get the red frowny face on the INHALE, but not on the exhale. I'm not sure whether this could be caused by sinus congestion, but this was not the case earlier in my treatment. Additionally, when the pressures ramp up higher during the test, the red frowny face happens less often. So I suspect I have a mask seal/fit issue inside my nose but I can't figure out what to do.
- I've changed hoses, headgear, pillows, and the connector piece between the main hose and the nasal pillows. All these changes in the last few weeks have not helped the fit issues.
- I tried a different mask (Phillips Dreamwear Nasal Pillows) and saw similar leak issues on the Run Mask Fit test on the inhale portion. The ResMed mask appears to be worse at the moment.
- I've tried treating the congestion with a Neti pot, Claritin/Allegra, Flonase and Nasalcrom spray. None of them seem to make a long-term change. I was taking Claritin/Allegra earlier in the summer when my numbers were better, so I've gone back on Allegra and will be seeing a sinus specialist to determine whether I have underlying issues.

Here is what last night looked like, leaving my feeling like utter garbage today:

Here's an average "good" night from back in June when I was a few weeks into therapy:

A few questions:
- Why might my centrals be climbing when I wasn't initially diagnosed with central apnea?
- How can I understand the change in mask fit, specifically why I'm getting the frowny face on the inhale but not the exhale? Is this attributable to my chronic nasal congestion I've been battling the last month?
- What changes can I make to my therapy to try to get back to the good zone I was in in June/July?
- Any questions I should bring to my sleep specialist/CPAP coach?